When FLR is initiated for a VF (PCI function level reset),
the parent PF gets a interrupt. PF then sends a message to
admin function (AF), which then cleans up all resources
attached to that VF. This patch adds support to handle
CPT FLR.
Signed-off-by: NNarayana Prasad Raju Atherya <pathreya@marvell.com>
Signed-off-by: NSuheil Chandran <schandran@marvell.com>
Signed-off-by: NSunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: NSrujana Challa <schalla@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Adds support to display block CPT1 stats at
"/sys/kernel/debug/octeontx2/cpt1".
Signed-off-by: NMahipal Challa <mchalla@marvell.com>
Signed-off-by: NSrujana Challa <schalla@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Add devlink support to AF driver. Basic devlink support is added.
Currently info_get is the only supported devlink ops.

devlink ouptput looks like this
 # devlink dev
 pci/0002:01:00.0
 # devlink dev info
 pci/0002:01:00.0:
  driver octeontx2-af
 #
Signed-off-by: NSunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NGeorge Cherian <george.cherian@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Add entries to debugfs at /sys/kernel/debug/octeontx2/cpt.

cpt_pc: dump cpt performance HW registers.
Usage:
cat /sys/kernel/debug/octeontx2/cpt/cpt_pc

cpt_ae_sts: show cpt asymmetric engines current state
Usage:
cat /sys/kernel/debug/octeontx2/cpt/cpt_ae_sts

cpt_se_sts: show cpt symmetric engines current state
Usage:
cat /sys/kernel/debug/octeontx2/cpt/cpt_se_sts

cpt_engines_info: dump cpt engine control registers.
Usage:
cat /sys/kernel/debug/octeontx2/cpt/cpt_engines_info

cpt_lfs_info: dump cpt lfs control registers.
Usage:
cat /sys/kernel/debug/octeontx2/cpt/cpt_lfs_info

cpt_err_info: dump cpt error registers.
Usage:
cat /sys/kernel/debug/octeontx2/cpt/cpt_err_info
Signed-off-by: NSuheil Chandran <schandran@marvell.com>
Signed-off-by: NSrujana Challa <schalla@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Since mailbox message for installing flows is in place,
remove the RXVLAN_ALLOC mbox message which is redundant.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch handles the VF mac address changes as given below.
    1. mac addr configrued by VF will be retained until VF module unload.
    2. mac addr configred by PF for VF will be retained until power cycle.
    3. mac addr confgired by PF for its VF can't be overwritten by VF.
Signed-off-by: NHariprasad Kelam <hkelam@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch adds support for ndo_set_vf_mac, ndo_set_vf_vlan
and ndo_get_vf_config handlers. The traffic redirection
based on the VF mac address or vlan id is done by installing
MCAM rules. Reserved RX_VTAG_TYPE7 in each NIXLF for VF VLAN
which strips the VLAN tag from ingress VLAN traffic. The NIX PF
allocates two MCAM entries for VF VLAN feature, one used for
ingress VTAG strip and another entry for egress VTAG insertion.

This patch also updates the MAC address in PF installed VF VLAN
rule upon receiving nix_lf_start_rx mbox request for VF since
Administrative Function driver will assign a valid MAC addr
in nix_lf_start_rx function.
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Co-developed-by: NTomasz Duszynski <tduszynski@marvell.com>
Signed-off-by: NTomasz Duszynski <tduszynski@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NHariprasad Kelam <hkelam@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch modifies the existing nix_vtag_config mailbox message
to allocate and free TX VTAG entries as requested by a NIX PF.
The TX VTAG entries are global resource that shared by all PFs
and each entry specifies the size of VTAG to insert and the VTAG
header data to insert. The mailbox response contains the entry
index which is used by mailbox requester in configuring the
NPC_TX_VTAG_ACTION for any MCAM entry.
Signed-off-by: NVamsi Attunuru <vattunuru@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Added new mailbox messages to install and delete MCAM rules.
These mailbox messages will be used for adding/deleting ethtool
n-tuple filters by NIX PF. The installed MCAM rules are stored
in a list that will be traversed later to delete the MCAM entries
when the interface is brought down or when PCIe FLR is received.
The delete mailbox supports deleting a single MCAM entry or range
of entries or all the MCAM entries owned by the pcifunc. Each MCAM
entry can be associated with a HW match stat entry if the mailbox
requester wants to check the hit count for debugging.

Modified adding default unicast DMAC match rule using install
flow API. The default unicast DMAC match entry installed by
Administrative Function is saved and can be changed later by the
mailbox user to fit additional fields, or the default MCAM entry
rule action can be used for other flow rules installed later.

Modified rvu_mbox_handler_nix_lf_free mailbox to add a flag to
disable or delete the MCAM entries. The MCAM entries are disabled
when the interface is brought down and deleted in FLR handler.
The disabled MCAM entries will be re-enabled when the interface
is brought up again.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Key Extraction(KEX) profile decides how the packet metadata such as
layer information and selected packet data bytes at each layer are
placed in MCAM search key. This patch reads the configured KEX profile
parameters to find out the bit position and bit mask for each field.
The information is used when programming the MCAM match data by SW
to match a packet flow and take appropriate action on the flow. This
patch also verifies the mandatory fields such as channel and DMAC
are not overwritten by the KEX configuration of other fields.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch adds support to verify the channel number sent by
mailbox requester before writing MCAM entry for Ingress packets.
Similarly for Egress packets, verifying the PF_FUNC sent by the
mailbox user.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NKiran Kumar K <kirankumark@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NNaveen Mamindlapalli <naveenm@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

On 98xx silicon, NPC block has additional
mcam entries, counters and NIX1 interfaces.
Extended set of registers are present for the
new mcam entries and counters.
This patch does the following:
- updates the register accessing macros
  to use extended set if present.
- configures the MKEX profile for NIX1 interfaces also.
- updates mcam entry write functions to use assigned
  NIX0/1 interfaces for the PF/VF.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NRakesh Babu <rsaladi2@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Firmware configures NIX block mapping for all CGXs
to achieve maximum throughput. This patch reads
the configuration and create mapping between RVU
PF and NIX blocks. And for LBK VFs assign NIX0 for
even numbered VFs and NIX1 for odd numbered VFs.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NRakesh Babu <rsaladi2@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

This patch modifies NIX functions to operate
with nix_hw context so that existing functions
can be used for both NIX0 and NIX1 blocks. And
the NIX blocks present in the system are initialized
during driver init and freed during exit.
Signed-off-by: NRakesh Babu <rsaladi2@marvell.com>
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Since multiple blocks of same type are present in
98xx, modify functions which get resource count and
which update resource count to work with individual
block address instead of block type.
Reviewed-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NRakesh Babu <rsaladi2@marvell.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>

Packet replication feature present in Octeontx2
is a hardware linked list of PF and its VF
interfaces so that broadcast packets are sent
to all interfaces present in the list. It is
driver job to add and delete a PF/VF interface
to/from the list when the interface is brought
up and down. This patch fixes the
npc_enadis_default_entries function to handle
broadcast replication properly if packet replication
feature is present.

Fixes: 40df309e ("octeontx2-af: Support to enable/disable default MCAM entries")
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NGeetha sowjanya <gakula@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Refactor KPU related NPC code gathering all configuration data in a
structured format and putting it in one place (npc_profile.h).
This increases readability and makes it easier to extend the profile
configuration (as opposed to jumping between multiple header and source
files).

To do this:
* Gather all KPU profile related data into a single adapter struct.
* Convert the built-in MKEX definition to a structured one to streamline
  the MKEX loading.
* Convert LT default register configuration into a structure, keeping
  default protocol settings in same file where identifiers for those
  protocols are defined.
* Add a single point for KPU profile loading, so that its source may
  change in the future once proper interfaces for loading such config
  are in place.
Signed-off-by: NStanislaw Kardach <skardach@marvell.com>
Acked-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Precision Timestamping block found on Octeontx2
platform is an independent coprocessor and has
internal PTP hardware clock. Once configured PTP
runs independently and when a packet arrives
CGX hardware block gets the current timestamp
from PTP block and forwards the packet to NIX
by prepending timestamp to the packet.
This patch adds the pci driver for PTP block.
The driver gets registered by AF driver and does
initial configuration and exposes a mailbox function to
read and adjust PTP hardware clock. The mailbox function
is called by AF consumers like netdev drivers or
userspace drivers. Since PTP being a single block
in platform this driver helps in accessing PTP
block by any AF consumer.
Co-developed-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NAleksey Makarov <amakarov@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Acked-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Four new mbox messages ids and handler are added in order to
enable or disable timestamping procedure on tx and rx side.
Additionally when PTP is enabled, the packet parser must skip
over 8 bytes and start analyzing packet data there. To make NPC
profiles work seemlesly PTR_ADVANCE of IKPU is set so that
parsing can be done as before when all data pointers
are shifted by 8 bytes automatically.
Co-developed-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NZyta Szpak <zyta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Acked-by: NRichard Cochran <richardcochran@gmail.com>
Acked-by: NJakub Kicinski <kuba@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For retrieving info like interface MAC addresses, packet
parser key extraction config etc currently a command
is sent to firmware and firmware which periodically polls
for commands, processes these and returns the info.

This is resulting in interface initialization taking lot
of time. To optimize this a memory region is shared between
firmware and this driver, firmware while booting puts
static info like these into that region for driver to
read directly without using commands.

With this
- Logic for retrieving packet parser extraction config
  via commands is removed and repalced with using the
  shared 'fwdata' structure.
- Now RVU MSIX vector address is also retrieved from this fwdata struct
  instead of from CSR. Otherwise when kexec/kdump crash kernel loads
  CSR will have a IOVA setup by primary kernel which impacts
  RVU PF/VF's interrupts.
- Also added a mbox handler for PF/VF interfaces to retrieve their MAC
  addresses from AF.
Signed-off-by: NLinu Cherian <lcherian@marvell.com>
Signed-off-by: NChristina Jacob <cjacob@marvell.com>
Signed-off-by: NRakesh Babu <rsaladi2@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Cleanedup repititive nixlf and blkaddr retrieving logic
is various mailbox handlers throughout the rvu_nix.c file.
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch corrects the SPDX License Identifier style in
header files related to Marvell OcteonTX2 network devices.
It uses an expilict block comment for the SPDX License
Identifier.

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.
Suggested-by: NJoe Perches <joe@perches.com>
Signed-off-by: NNishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Traffic for a CGX mapped NIXLF can be stopped by disabling entries
in NPC MCAM or by configuring CGX and mailbox messages exist for the
two options. If traffic is stopped at CGX then VFs of that PF are
also effected hence CGX traffic should be started/stopped by
tracking all the users of it. This patch implements that CGX users
tracking. CGX is also configured along with NPC if required.

Also removed a check which mandates even number of LBK VFs.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Ingress packet replication support has been added to 96xx B0
silicon. This patch enables using that feature to replicate
ingress broadcast packets to PF and it's VFs.

Also fixed below issues
- VFs can also install NPC MCAM entry to forward broadcast pkts.
  Otherwise, unless PF's interface is UP, VFs will not receive
  bcast packets.
- NPC MCAM entry is disabled when PF and all it's VFs are down.
- Few corner cases in installing multicast entry list.
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

CN96xx initial silicon doesn't support all features pertaining to
NIX transmit scheduling and shaping.
- It supports a fixed topology of 1:1 mapped transmit
  limiters at all levels.
- Supports DWRR only at SMQ/MDQ and TL1.
- Doesn't support shaping and coloring.

This patch adds HW capability structure by which each variant
and skew of silicon can be differentiated by their supported
features. And adds support for A0 silicon's transmit scheduler
capabilities or rather limitations.
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For every mailbox handler added to rvu, we are adding a function
declaration in rvu header file. Cleaned this up by adding a macro
to generate these declarations automatically.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Added a new mailbox API which goes through all responses
to check their IDs and response codes.

Also added logic to prevent queuing multiple works to
process the same mailbox message. This scenario happens
when AF is processing a PF's request and menawhile PF
sends ACK to AF sent UP message, then mbox_hdr->num_msgs
in the PF->AF DOWN mbox region will be nonzero and AF
will end up processing PF's request again. This is fixed
by taking a backup of num_msgs counter and clearing the
same in the mbox region before scheduling work.
Signed-off-by: NSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Added support to display current NPC MCAM entries and counter's allocation
status ín debugfs.

cat /sys/kernel/debug/octeontx2/npc/mcam_info' will dump following info
- MCAM Rx and Tx keysize
- Total MCAM entries and counters
- Current available count
- Count of number of MCAM entries and counters allocated
  by a RVU PF/VF device.

Also, one NPC MCAM counter (last one) is reserved and mapped to
NPC RX_INTF's MISS_ACTION to count dropped packets due to no MCAM
entry match. This pkt drop counter can be checked via debugfs.
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A CGX port is shared by a RVU PF and it's VFs. These per
CGX port level NIX Rx/Tx counters are cumilative stats of
all NIXLFs sharing this port. These stats when compared
to CGX Rx/Tx stats helps in identifying pkts dropped within
the system, if any.
Signed-off-by: NLinu Cherian <lcherian@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds CGX LMAC physical interface or serdes Rx/Tx
packet stats to debugfs.

'cat cgx<idx>/lmac<idx>/stats' dumps the current interface link
status and Rx/Tx stats. Stats include pkt received/transmitted,
dropped, pause frames etc etc.
Signed-off-by: NPrakash Brahmajyosyula <bprakash@marvell.com>
Signed-off-by: NLinu Cherian <lcherian@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To aid in debugging NIX block related issues, added support to dump
NIX block LF's RQ, SQ and CQ hardware contexts in debugfs. User can
check which contexts are enabled currently and dump it's current HW
context.

Four new files 'qsize', 'rq_ctx', 'sq_ctx' and 'cq_ctx' are added to the
debugfs at 'sys/kernel/debug/octeontx2/nix/'

'echo <nixlf index> > qsize' will display current enabled CQ/SQ/RQs.
'echo <nixlf> [rq number/all] > rq_ctx',
'echo <nixlf> [sq number/all] > sq_ctx' &
'echo <nixlf> [cq number/all] > cq_ctx' will dump RQ/SQ/CQ's current
hardware context.
Signed-off-by: NPrakash Brahmajyosyula <bprakash@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To aid in debugging NPA related issues, added support to dump
NPA (pool allocator) block LF's aura and pool hardware contexts in
debugfs. User can check which contexts are enabled currently and dump
it's current HW context.

Three new files 'qsize', 'aura_ctx', 'pool_ctx' are added to the
debugfs at 'sys/kernel/debug/octeontx2/npa/'

'echo <npalf index> > qsize' will display current enabled Aura/Pools.
'echo <npalf> [aura number/all] > aura_ctx' &
'echo <npalf> [aura number/all] > pool_ctx' will dump Aura/Pool
context info.
Signed-off-by: NChristina Jacob <cjacob@marvell.com>
Signed-off-by: NPrakash Brahmajyosyula <bprakash@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Added support to dump current resource provisioning status
of all resource virtualization unit (RVU) block's
(i.e NPA, NIX, SSO, SSOW, CPT, TIM) local functions attached
to a PF_FUNC into a debugfs file.

'cat /sys/kernel/debug/octeontx2/rsrc_alloc'
will show the current block LF's allocation status.
Signed-off-by: NChristina Jacob <cjacob@marvell.com>
Signed-off-by: NPrakash Brahmajyosyula <bprakash@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The following set of NPC registers allow the driver to configure NPC
to generate different key value schemes to compare against packet
payload in MCAM search.

NPC_AF_INTF(0..1)_KEX_CFG
NPC_AF_KEX_LDATA(0..1)_FLAGS_CFG
NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG
NPC_AF_INTF(0..1)_LDATA(0..1)_FLAGS(0..15)_CFG

Currently, the AF driver populates these registers to
configure the default values to address the most common
use cases such as key generation for channel number + DMAC.

The secure firmware stores different configuration
value of these registers to enable different NPC use case
along with the name for the lookup.

Patch loads profile binary from secure firmware over
the exiting CGX mailbox interface and apply the profile.

AF driver shall fall back to the default configuration
in case of any errors.

The AF consumer driver can know the selected profile
on response to NPC_GET_KEX_CFG mailbox by introducing
mkex_pfl_name in the struct npc_get_kex_cfg_rsp.
Signed-off-by: NVamsi Attunuru <vamsi.attunuru@marvell.com>
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

NIX_AF_LSO_FORMAT(0..31)_FIELD(0..7) register enables an SW defined
means to define LSO packet modification formats.

0..31 works as an index to choose the algorithm, On success, the mailbox
returns the index to the client of chosen LSO algorithm selection.
This index will be used in configuring the transmit descriptors.

Add mailbox interface to dynamically reserve and configure LSO format.

This commit also fixes 'sizem1' for NIX_LSOALG_TCP_FLAGS
to '1' i.e 2 Bytes.
Signed-off-by: NNithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: NSunil Goutham <sgoutham@marvell.com>
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Adds mailbox support for L4 checksum verification
and L3 and L4 length verification configuration.
Signed-off-by: NVidhya Raman <vraman@marvell.com>
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

NIX_AF_MARK_FORMAT(0..127)_CTL register enables an SW defined
means to mark/insert various data in the packet based on
final packet color from traffic shaping HW.

0..127 works as an index to choose the algorithm. On success,
the mailbox returns the index to the client.

Add NIX_MARK_FORMAT_CFG mailbox which reserves mark format based on
tuple (offset, y_mask, y_val, r_mask, r_val)

If the tuple is requested again for mark format that was already
reserved, then it will be reused. If not it will reserve a new entry
if space is available.

Also on AF init commonly used marker format such as VLAN DEI, IPv4
ECN, IPv4 DSCP are reserved for AF consumers.
Signed-off-by: NKrzysztof Kanas <kkanas@marvell.com>
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

TL1 is the root node in the scheduling hierarchy and
it is a global resource with a limited number.

This patch introduces restriction and validation on
the allocation of the TL1 nodes for the effective resource
sharing across the AF consumers.

- Limit TL1 allocation to 2 per lmac.
  One could be for the normal link and one for IEEE802.3br
  express link (Express Send DMA).
  Effectively all the VF's of an RVU PF(lmac) share the two TL1 schqs.
- TL1 cannot be freed once allocated.
- Allow VF's to only apply default config to TL1 if not
  already applied. PF's can always overwrite the TL1 config.
- Consider NIX_AQ_INSTOP_WRITE while validating txschq
  when sq.ena is set.
Signed-off-by: NKrzysztof Kanas <kkanas@marvell.com>
Signed-off-by: NNithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Introduced reserve_flowkey_alg_idx()to reserve RSS algorithm index,
it would internally use set_flowkey_fields() to generate fields
based on the flow key dynamically.

On AF driver init, it would reserve a predefined set RSS algo indexes,
which will be available all the time for all the AF driver consumers.
The leftover algo indexes can be reserved at runtime through
exiting nix_rss_flowkey_cfg mailbox message.

The NIX_FLOW_KEY_TYPE_PORT is removed from predefined a set of RSS flow
type as it is not used by any consumer.
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Added response for nix_rss_flowkey_cfg message to return
selected RSS algorithm index.

The FLOW_KEY_TYPE* definition is part of the mbox message and
it will be used by the other consumers of AF driver hence moving to mbox.h.

Also renamed FLOW_* definitions to NIX_FLOW_* to avoid global
name space collisions, as we have various coming from
include/uapi/linux/pkt_cls.h for example.
Signed-off-by: NJerin Jacob <jerinj@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>