UPDMEM source-mac table is a key-value map used to store devices mac
addresses according to the port identifier. UPDMEM source mac table is
used during IPv6 traffic hw acceleration since PPE entries, for space
constraints, do not contain the full source mac address but just the
identifier in the UPDMEM source-mac table.
Configure UPDMEM source-mac table with device mac addresses and set
the source-mac ID field for PPE IPv6 entries in order to select the
proper device mac address as source mac for L3 IPv6 hw accelerated traffic.
Fixes: 00a7678310 ("net: airoha: Introduce flowtable offload support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250602-airoha-flowtable-ipv6-fix-v2-1-3287f8b55214@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In order to improve packet processing and packet forwarding
performances, EN7581 SoC supports consuming SRAM instead of DRAM for
hw forwarding descriptors queue.
For downlink hw accelerated traffic request to consume SRAM memory
for hw forwarding descriptors queue.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-4-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Since hfwd descriptor and buffer queues are allocated via
dmam_alloc_coherent() we do not need to store their references
in airoha_qdma struct. This patch does not introduce any logical changes,
just code clean-up.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-2-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Introduce per-flow stats accounting to the flowtable hw offload in
the airoha_eth driver. Flow stats are split in the PPE and NPU modules:
- PPE: accounts for high 32bit of per-flow stats
- NPU: accounts for low 32bit of per-flow stats
FLOW_CLS_STATS can be enabled or disabled at compile time.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-2-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
EN7581 ethernet SoC supports 4 programmable IRQ lines each one composed
by 4 IRQ configuration registers. Add airoha_irq_bank struct as a
container for independent IRQ lines info (e.g. IRQ number, enabled source
interrupts, ecc). This is a preliminary patch to support multiple IRQ lines
in airoha_eth driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250418-airoha-eth-multi-irq-v1-1-1ab0083ca3c1@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce tc matchall filter offload support in airoha_eth driver.
Matchall hw filter is used to implement hw rate policing via tc action
police:
$tc qdisc add dev eth0 handle ffff: ingress
$tc filter add dev eth0 parent ffff: matchall action police \
rate 100mbit burst 1000k drop
The current implementation supports just drop/accept as exceed/notexceed
actions. Moreover, rate and burst are the only supported configuration
parameters.
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250415-airoha-hw-rx-ratelimit-v4-1-03458784fbc3@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Similar to mtk driver, introduce the capability to offload L2 traffic
defining flower rules in the PSE/PPE engine available on EN7581 SoC.
Since the hw always reports L2/L3/L4 flower rules, link all L2 rules
sharing the same L2 info (with different L3/L4 info) in the L2 subflows
list of a given L2 PPE entry.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Link: https://patch.msgid.link/20250409-airoha-flowtable-l2b-v2-2-4a1e3935ea92@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Introduce l2_flows rhashtable in airoha_ppe struct in order to
store L2 flows committed by upper layers of the kernel. This is a
preliminary patch in order to offload L2 traffic rules.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Link: https://patch.msgid.link/20250409-airoha-flowtable-l2b-v2-1-4a1e3935ea92@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Dev pointer in airoha_ppe_foe_entry_prepare routine is not strictly
a device allocated by airoha_eth driver since it is an egress device
and the flowtable can contain even wlan, pppoe or vlan devices. E.g:
flowtable ft {
hook ingress priority filter
devices = { eth1, lan1, lan2, lan3, lan4, wlan0 }
flags offload ^
|
"not allocated by airoha_eth" --
}
In this case airoha_get_dsa_port() will just return the original device
pointer and we can't assume netdev priv pointer points to an
airoha_gdm_port struct.
Fix the issue validating egress gdm port in airoha_ppe_foe_entry_prepare
routine before accessing net_device priv pointer.
Fixes: 00a7678310 ("net: airoha: Introduce flowtable offload support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250401-airoha-validate-egress-gdm-port-v4-1-c7315d33ce10@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The #if check causes a build failure when CONFIG_DEBUG_FS is turned
off:
In file included from drivers/net/ethernet/airoha/airoha_eth.c:17:
drivers/net/ethernet/airoha/airoha_eth.h:543:5: error: "CONFIG_DEBUG_FS" is not defined, evaluates to 0 [-Werror=undef]
543 | #if CONFIG_DEBUG_FS
| ^~~~~~~~~~~~~~~
Replace it with the correct #ifdef.
Fixes: 3fe15c640f ("net: airoha: Introduce PPE debugfs support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250314155009.4114308-1-arnd@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
EN7581 SoC can receive 9k frames. Enable the reception of Scatter-Gather
(SG) frames.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250304-airoha-eth-rx-sg-v1-2-283ebc61120e@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Similar to PPE support for Mediatek devices, introduce PPE debugfs
in order to dump binded and unbinded flows.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Enable hw redirection for traffic received on GDM2 port to GDM{3,4}.
This is required to apply Qdisc offloading (HTB or ETS) for traffic to
and from GDM{3,4} port.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Introduce netfilter flowtable integration in order to allow airoha_eth
driver to offload 5-tuple flower rules learned by the PPE module if the
user accelerates them using a nft configuration similar to the one reported
below:
table inet filter {
flowtable ft {
hook ingress priority filter
devices = { lan1, lan2, lan3, lan4, eth1 }
flags offload;
}
chain forward {
type filter hook forward priority filter; policy accept;
meta l4proto { tcp, udp } flow add @ft
}
}
Tested-by: Sayantan Nandy <sayantan.nandy@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Packet Processor Engine (PPE) module available on EN7581 SoC populates
the PPE table with 5-tuples flower rules learned from traffic forwarded
between the GDM ports connected to the Packet Switch Engine (PSE) module.
The airoha_eth driver can enable hw acceleration of learned 5-tuples
rules if the user configure them in netfilter flowtable (netfilter
flowtable support will be added with subsequent patches).
airoha_eth driver configures and collects data from the PPE module via a
Network Processor Unit (NPU) RISC-V module available on the EN7581 SoC.
Introduce basic support for Airoha NPU module.
Tested-by: Sayantan Nandy <sayantan.nandy@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Rename airoha_set_gdm_port() in airoha_set_vip_for_gdm_port().
Get rid of airoha_set_gdm_ports routine.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In the current codebase airoha_eth driver supports just a single
net_device connected to the Packet Switch Engine (PSE) lan port (GDM1).
As shown in commit 23020f0493 ("net: airoha: Introduce ethernet
support for EN7581 SoC"), PSE can switch packets between four GDM ports.
Enable the capability to create a net_device for each GDM port of the
PSE module. Moreover, since the QDMA blocks can be shared between
net_devices, do not stop TX/RX DMA in airoha_dev_stop() if there are
active net_devices for this QDMA block.
This is a preliminary patch to enable flowtable hw offloading for EN7581
SoC.
Co-developed-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Packet Processor Engine (PPE) module reads DSA tags from the DMA descriptor
and requires untagged DSA packets to properly parse them. Move DSA tag
in the DMA descriptor on TX side and read DSA tag from DMA descriptor
on RX side. In order to avoid skb reallocation, store tag in skb_dst on
RX side.
This is a preliminary patch to enable netfilter flowtable hw offloading
on EN7581 SoC.
Tested-by: Sayantan Nandy <sayantan.nandy@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This is a preliminary patch to introduce flowtable hw offloading
support for airoha_eth driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Move common airoha_eth definitions in airoha_eth.h in order to reuse
them for Packet Processor Engine (PPE) codebase.
PPE module is used to enable support for flowtable hw offloading in
airoha_eth driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
