net/cxgbe: read firmware configuration file from filesystem

Add support to read firmware configuration file from
/lib/firmware/cxgb4/ path in the filesystem. The firmware
config file is used to enab

net/cxgbe: read firmware configuration file from filesystem

Add support to read firmware configuration file from
/lib/firmware/cxgb4/ path in the filesystem. The firmware
config file is used to enable or disable NIC features before
firmware initialization to help retrieve better debug data to
analyze firmware init failures. The config file can also
be used to redistribute resources, like queues, TCAMs, etc.,
from disabled physical functions (PFs) to main PF, before
firmware init.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add MAC match-all to track promiscuous traffic

Chelsio T6 ASIC doesn't track Rx promisc traffic dropped due to lack
of Rx buffers and hence the imissed counter doesn't increment. Add
supp

net/cxgbe: add MAC match-all to track promiscuous traffic

Chelsio T6 ASIC doesn't track Rx promisc traffic dropped due to lack
of Rx buffers and hence the imissed counter doesn't increment. Add
support for RAW MAC filter to insert a wildcard matchall rule at
the end of MPS TCAM to make MPS track the promisc traffic. This
rule will only be added/removed when promisc mode is turned on/off
on the interface.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: disable Rx during port link down

When link goes down, disable the port's Rx path to drop the incoming
traffic closer to the wire, instead of accepting them in for further
Rx processing, o

net/cxgbe: disable Rx during port link down

When link goes down, disable the port's Rx path to drop the incoming
traffic closer to the wire, instead of accepting them in for further
Rx processing, only to eventually drop them at the port's RxQs. This
prevents unnecessary congestion in the Rx path. The port's Rx path
will be re-enabled once the link up event is received in the firmware
event queue.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: support configuring link FEC

Add ethdev ops to query and configure link FEC.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chel

net/cxgbe: support configuring link FEC

Add ethdev ops to query and configure link FEC.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: rework and simplify link handling

Rework and simplify link handling code. Remove redundant
variables in link configuration structure and directly
extract information from the 32-bit link

net/cxgbe: rework and simplify link handling

Rework and simplify link handling code. Remove redundant
variables in link configuration structure and directly
extract information from the 32-bit link capabilities.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: remove legacy 16-bit link capabilities

Remove legacy 16-bit link capabilities and always request for the
32-bit link capabilities from firmware.

Signed-off-by: Karra Satwik <kaara.satwik

net/cxgbe: remove legacy 16-bit link capabilities

Remove legacy 16-bit link capabilities and always request for the
32-bit link capabilities from firmware.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: always enable HASH filter support

Disable all unused firmware resources during init time to give
more resources for HASH (exact-match) filter region and always
request firmware to enable

net/cxgbe: always enable HASH filter support

Disable all unused firmware resources during init time to give
more resources for HASH (exact-match) filter region and always
request firmware to enable HASH filter support when resources
are available.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add devargs to control filtermode and filtermask

Apart from the 4-tuple (IP src/dst addresses and TCP/UDP src/dst
port addresses), there are only 40-bits available to match other
fields i

net/cxgbe: add devargs to control filtermode and filtermask

Apart from the 4-tuple (IP src/dst addresses and TCP/UDP src/dst
port addresses), there are only 40-bits available to match other
fields in packet headers. Not all combinations of packet header
fields can fit in the 40-bit tuple.

Currently, the combination of packet header fields to match are
configured via filterMode for LETCAM filters and filterMask for
HASH filters in firmware config files (t5/t6-config.txt). So, add
devargs to allow User to dynamically select the filterMode and
filterMask combination during runtime, without having to modify the
firmware config files and reflashing them onto the adapter. A table
of supported combinations is maintained by the driver to internally
translate the User specified devargs combination to hardware's internal
format before writing the requested combination to hardware

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: use firmware API for validating filter spec

Add new firmware API FW_PARAM_DEV_FILTER_MODE_MASK to fetch
the filtermode and filtermask values configured in hardware,
which are used to vali

net/cxgbe: use firmware API for validating filter spec

Add new firmware API FW_PARAM_DEV_FILTER_MODE_MASK to fetch
the filtermode and filtermask values configured in hardware,
which are used to validate the match combinations in the filter
spec before offloading the filter rules to hardware. For older
firmware that doesn't support the new API, fallback to older way
of directly reading from indirect registers

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: support flow API for source MAC rewrite

Add support to rewrite Source MAC addresses. The new Source
MAC address is written into a free entry in the SMT table
and the corresponding SMT ind

net/cxgbe: support flow API for source MAC rewrite

Add support to rewrite Source MAC addresses. The new Source
MAC address is written into a free entry in the SMT table
and the corresponding SMT index is used by hardware to
rewrite the Source MAC address of the packets hitting the
flow.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: support Source MAC Table

Source MAC Table (SMT) is used for storing Source MAC
addresses to be written in packets transmitted on the
wire. Hence, the SMT table can be used for overwriting

net/cxgbe: support Source MAC Table

Source MAC Table (SMT) is used for storing Source MAC
addresses to be written in packets transmitted on the
wire. Hence, the SMT table can be used for overwriting
Source MAC addresses in packets, hitting corresponding
filter rules inserted by the rte_flow API.

Query firmware for SMT start and size information available
to the underlying PF. Allocate and maintain the corresponding
driver's copy of the hardware SMT table, with appropriate
refcount mechanism. If SMT information is not available, then
use the entire hardware SMT table.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: support flow API for matching all packets on VF

Add support to match all packets received on the underlying VF.

Use new firmware API to fetch the Virtual Interface Number (VIN)
allocated

net/cxgbe: support flow API for matching all packets on VF

Add support to match all packets received on the underlying VF.

Use new firmware API to fetch the Virtual Interface Number (VIN)
allocated to each VF by the firmware. The VIN is required to
write filter rules to match all packets on VFs, whose identifier
is beyond max 7-bit value (i.e. 127) in VIID.

If firmware doesn't support fetching the VIN information, then
fallback to manually retrieving the VIN value from the 7-bit field
in the VIID, which only supports in range of 0..127. In this case,
packets belonging to VFs, whose identifier is beyond 127 can't be
matched.

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: fetch max Tx coalesce limit from firmware

Query firmware for max number of packets that can be coalesced by
Tx.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

net/cxgbe: add action to swap MAC addresses

Implement RTE_FLOW_ACTION_TYPE_MAC_SWAP to offload flows with
action to swap the source and destination MAC addresses in the
outermost Ethernet header.

S

net/cxgbe: add action to swap MAC addresses

Implement RTE_FLOW_ACTION_TYPE_MAC_SWAP to offload flows with
action to swap the source and destination MAC addresses in the
outermost Ethernet header.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add flow actions to modify IP and TCP/UDP port

Query firmware for the new filter work request to offload flows with
actions to modify IP and TCP/UDP port addresses. When available,
transl

net/cxgbe: add flow actions to modify IP and TCP/UDP port

Query firmware for the new filter work request to offload flows with
actions to modify IP and TCP/UDP port addresses. When available,
translate IP and TCP/UDP port address modify actions to internal
hardware specification and offload the flow to hardware.

Original work by Shagun Agrawal

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add API to program hardware MPS table

Add API to program and manage hardware Multi Port Switch table. MPS
holds destination MAC addresses to be matched against incoming packets
for furthe

net/cxgbe: add API to program hardware MPS table

Add API to program and manage hardware Multi Port Switch table. MPS
holds destination MAC addresses to be matched against incoming packets
for further rule processing. Packets not matching any entry in MPS table
will be dropped by default, unless the underlying port is in promiscuous
mode.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add API to program hardware layer 2 table

Add API to program and manage hardware Layer 2 Table. L2T holds
information necessary to rewrite specific fields in packet, such
as destination M

net/cxgbe: add API to program hardware layer 2 table

Add API to program and manage hardware Layer 2 Table. L2T holds
information necessary to rewrite specific fields in packet, such
as destination MAC address and vlan id.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: fix Rx channel map and queue type

Set the Rx channel map and ingress queue type properly to allow firmware
to manage the internal mapping correctly.

Fixes: 6c2809628cd5 ("net/cxgbe: impr

net/cxgbe: fix Rx channel map and queue type

Set the Rx channel map and ingress queue type properly to allow firmware
to manage the internal mapping correctly.

Fixes: 6c2809628cd5 ("net/cxgbe: improve latency for slow traffic")
Cc: stable@dpdk.org

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: query firmware for max queues available

Query firmware for max Tx and Rx queues that can be allocated.
Move the code to determine max queues to common place for both
PF and VF.

Signed-of

net/cxgbe: query firmware for max queues available

Query firmware for max Tx and Rx queues that can be allocated.
Move the code to determine max queues to common place for both
PF and VF.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: support to delete flows in HASH region

Add interface to delete offloaded flows in HASH region. Use the
hash index saved during insertion to delete the corresponding flow.

Signed-off-by:

net/cxgbe: support to delete flows in HASH region

Add interface to delete offloaded flows in HASH region. Use the
hash index saved during insertion to delete the corresponding flow.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: support to offload flows to HASH region

Add interface to offload flows to HASH region. Translate internal
filter specification to requests to offload flows to HASH region.
Save the return

net/cxgbe: support to offload flows to HASH region

Add interface to offload flows to HASH region. Translate internal
filter specification to requests to offload flows to HASH region.
Save the returned hash index of the offloaded flow for deletion later.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add Compressed Local IP region

CLIP region holds destination IPv6 addresses to be matched for
corresponding flows. Query firmware for CLIP resources and allocate
table to manage them. Als

net/cxgbe: add Compressed Local IP region

CLIP region holds destination IPv6 addresses to be matched for
corresponding flows. Query firmware for CLIP resources and allocate
table to manage them. Also update LE-TCAM to use CLIP to reduce
number of slots needed to offload IPv6 flows.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: implement flow create operation

Define filter work request API used to construct filter operations
to be communicated with firmware. These requests are sent via
control queue and completi

net/cxgbe: implement flow create operation

Define filter work request API used to construct filter operations
to be communicated with firmware. These requests are sent via
control queue and completions come asynchronously in firmware event
queue.

Implement flow create operation to create filters in LE-TCAM
(maskfull) region at specified index.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: add control queue to communicate filter requests

Add control queue to communicate filter creation/deletion requests
with firmware. This API will be used by subsequent patches.

Signed-off

net/cxgbe: add control queue to communicate filter requests

Add control queue to communicate filter creation/deletion requests
with firmware. This API will be used by subsequent patches.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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net/cxgbe: query firmware for filter resources

Fetch available filter resources from firmware and allocate table for
book-keeping and managing filters in hardware. Also define the hardware
filter sp

net/cxgbe: query firmware for filter resources

Fetch available filter resources from firmware and allocate table for
book-keeping and managing filters in hardware. Also define the hardware
filter specification (ch_filter_specification) used to describe each
filter rule.

Signed-off-by: Shagun Agrawal <shaguna@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

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