Commit Graph

60 Commits

Author SHA1 Message Date
Lorenzo Bianconi
9f6b606b6b net: airoha: ppe: Do not invalid PPE entries in case of SW hash collision
SW hash computed by airoha_ppe_foe_get_entry_hash routine (used for
foe_flow hlist) can theoretically produce collisions between two
different HW PPE entries.
In airoha_ppe_foe_insert_entry() if the collision occurs we will mark
the second PPE entry in the list as stale (setting the hw hash to 0xffff).
Stale entries are no more updated in airoha_ppe_foe_flow_entry_update
routine and so they are removed by Netfilter.
Fix the problem not marking the second entry as stale in
airoha_ppe_foe_insert_entry routine if we have already inserted the
brand new entry in the PPE table and let Netfilter remove real stale
entries according to their timestamp.
Please note this is just a theoretical issue spotted reviewing the code
and not faced running the system.

Fixes: cd53f62261 ("net: airoha: Add L2 hw acceleration support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250818-airoha-en7581-hash-collision-fix-v1-1-d190c4b53d1c@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-08-21 11:25:11 +02:00
Lorenzo Bianconi
4e7e471e2e net: airoha: npu: Add missing MODULE_FIRMWARE macros
Introduce missing MODULE_FIRMWARE definitions for firmware autoload.

Fixes: 23290c7bc1 ("net: airoha: Introduce Airoha NPU support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250801-airoha-npu-missing-module-firmware-v2-1-e860c824d515@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-04 17:15:59 -07:00
Lorenzo Bianconi
38358fa3cc net: airoha: Fix PPE table access in airoha_ppe_debugfs_foe_show()
In order to avoid any possible race we need to hold the ppe_lock
spinlock accessing the hw PPE table. airoha_ppe_foe_get_entry routine is
always executed holding ppe_lock except in airoha_ppe_debugfs_foe_show
routine. Fix the problem introducing airoha_ppe_foe_get_entry_locked
routine.

Fixes: 3fe15c640f ("net: airoha: Introduce PPE debugfs support")
Reviewed-by: Dawid Osuchowski <dawid.osuchowski@linux.intel.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250731-airoha_ppe_foe_get_entry_locked-v2-1-50efbd8c0fd6@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-01 13:52:36 -07:00
Dan Carpenter
1e5e40f255 net: airoha: Fix a NULL vs IS_ERR() bug in airoha_npu_run_firmware()
The devm_ioremap_resource() function returns error pointers.  It never
returns NULL.  Update the check to match.

Fixes: e27dba1951 ("net: Use of_reserved_mem_region_to_resource{_byname}() for "memory-region"")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/fc6d194e-6bf5-49ca-bc77-3fdfda62c434@sabinyo.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17 18:36:56 -07:00
Jakub Kicinski
af2d6148d2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc7).

Conflicts:

Documentation/netlink/specs/ovpn.yaml
  880d43ca9a ("netlink: specs: clean up spaces in brackets")
  af52020fc5 ("ovpn: reject unexpected netlink attributes")

drivers/net/phy/phy_device.c
  a44312d58e ("net: phy: Don't register LEDs for genphy")
  f0f2b992d8 ("net: phy: Don't register LEDs for genphy")
https://lore.kernel.org/20250710114926.7ec3a64f@kernel.org

drivers/net/wireless/intel/iwlwifi/fw/regulatory.c
drivers/net/wireless/intel/iwlwifi/mld/regulatory.c
  5fde0fcbd7 ("wifi: iwlwifi: mask reserved bits in chan_state_active_bitmap")
  ea045a0de3 ("wifi: iwlwifi: add support for accepting raw DSM tables by firmware")

net/ipv6/mcast.c
  ae3264a25a ("ipv6: mcast: Delay put pmc->idev in mld_del_delrec()")
  a8594c956c ("ipv6: mcast: Avoid a duplicate pointer check in mld_del_delrec()")
https://lore.kernel.org/8cc52891-3653-4b03-a45e-05464fe495cf@kernel.org

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-17 11:00:33 -07:00
Alok Tiwari
3cd582e7d0 net: airoha: fix potential use-after-free in airoha_npu_get()
np->name was being used after calling of_node_put(np), which
releases the node and can lead to a use-after-free bug.
Previously, of_node_put(np) was called unconditionally after
of_find_device_by_node(np), which could result in a use-after-free if
pdev is NULL.

This patch moves of_node_put(np) after the error check to ensure
the node is only released after both the error and success cases
are handled appropriately, preventing potential resource issues.

Fixes: 23290c7bc1 ("net: airoha: Introduce Airoha NPU support")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250715143102.3458286-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-16 16:15:09 -07:00
Jakub Kicinski
3321e97eab Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc6).

No conflicts.

Adjacent changes:

Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
  0a12c435a1 ("dt-bindings: net: sun8i-emac: Add A100 EMAC compatible")
  b3603c0466 ("dt-bindings: net: sun8i-emac: Rename A523 EMAC0 to GMAC0")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10 10:10:49 -07:00
Christophe JAILLET
3ef07434c7 net: airoha: Fix an error handling path in airoha_probe()
If an error occurs after a successful airoha_hw_init() call,
airoha_ppe_deinit() needs to be called as already done in the remove
function.

Fixes: 00a7678310 ("net: airoha: Introduce flowtable offload support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/1c940851b4fa3c3ed2a142910c821493a136f121.1746715755.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-08 08:59:24 -07:00
Rob Herring (Arm)
e27dba1951 net: Use of_reserved_mem_region_to_resource{_byname}() for "memory-region"
Use the newly added of_reserved_mem_region_to_resource{_byname}()
functions to handle "memory-region" properties.

The error handling is a bit different for mtk_wed_mcu_load_firmware().
A failed match of the "memory-region-names" would skip the entry, but
then other errors in the lookup and retrieval of the address would not
skip the entry. However, that distinction is not really important.
Either the region is available and usable or it is not. So now, errors
from of_reserved_mem_region_to_resource() are ignored so the region is
simply skipped.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250703183459.2074381-1-robh@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-08 08:29:46 -07:00
Lorenzo Bianconi
4cd9d227ab net: airoha: Get rid of dma_sync_single_for_device() in airoha_qdma_fill_rx_queue()
Since the page_pool for airoha_eth driver is created with
PP_FLAG_DMA_SYNC_DEV flag, we do not need to sync_for_device each page
received from the pool since it is already done by the page_pool codebase.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20250625-airoha-sync-for-device-v1-1-923741deaabf@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-26 17:11:01 -07:00
Jakub Kicinski
62deb67fc5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc3).

No conflicts or adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19 13:00:24 -07:00
Lorenzo Bianconi
7b46bdaec0 net: airoha: Differentiate hwfd buffer size for QDMA0 and QDMA1
EN7581 SoC allows configuring the size and the number of buffers in
hwfd payload queue for both QDMA0 and QDMA1.
In order to reduce the required DRAM used for hwfd buffers queues and
decrease the memory footprint, differentiate hwfd buffer size for QDMA0
and QDMA1 and reduce hwfd buffer size to 1KB for QDMA1 (WAN) while
maintaining 2KB for QDMA0 (LAN).

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250619-airoha-hw-num-desc-v4-2-49600a9b319a@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19 08:41:59 -07:00
Lorenzo Bianconi
edf8afeecf net: airoha: Compute number of descriptors according to reserved memory size
In order to not exceed the reserved memory size for hwfd buffers,
compute the number of hwfd buffers/descriptors according to the
reserved memory size and the size of each hwfd buffer (2KB).

Fixes: 3a1ce9e3d0 ("net: airoha: Add the capability to allocate hwfd buffers via reserved-memory")
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250619-airoha-hw-num-desc-v4-1-49600a9b319a@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19 08:41:58 -07:00
Lorenzo Bianconi
78bd03ee1f net: airoha: Always check return value from airoha_ppe_foe_get_entry()
airoha_ppe_foe_get_entry routine can return NULL, so check the returned
pointer is not NULL in airoha_ppe_foe_flow_l2_entry_update()

Fixes: b81e0f2b58 ("net: airoha: Add FLOW_CLS_STATS callback support")
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250618-check-ret-from-airoha_ppe_foe_get_entry-v2-1-068dcea3cc66@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19 08:34:13 -07:00
Jakub Kicinski
535de52801 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc2).

No conflicts or adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-12 10:09:10 -07:00
Lorenzo Bianconi
f478d68b65 net: airoha: Enable RX queues 16-31
Fix RX_DONE_INT_MASK definition in order to enable RX queues 16-31.

Fixes: f252493e18 ("net: airoha: Enable multiple IRQ lines support in airoha_eth driver.")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250609-aioha-fix-rx-queue-mask-v1-1-f33706a06fa2@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-10 17:58:26 -07:00
Lorenzo Bianconi
0097c4195b net: airoha: Add PPPoE offload support
Introduce flowtable hw acceleration for PPPoE traffic.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250609-b4-airoha-flowtable-pppoe-v1-1-1520fa7711b4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-10 17:57:14 -07:00
Lorenzo Bianconi
c86fac5365 net: airoha: Fix smac_id configuration in bridge mode
Set PPE entry smac_id field to 0xf in airoha_ppe_foe_commit_subflow_entry
routine for IPv6 traffic in order to instruct the hw to keep original
source mac address for IPv6 hw accelerated traffic in bridge mode.

Fixes: cd53f62261 ("net: airoha: Add L2 hw acceleration 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-v2-3-3287f8b55214@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-03 12:55:29 +02:00
Lorenzo Bianconi
504a577c9b net: airoha: Fix IPv6 hw acceleration in bridge mode
ib2 and airoha_foe_mac_info_common have not the same offsets in
airoha_foe_bridge and airoha_foe_ipv6 structures. Current codebase does
not accelerate IPv6 traffic in bridge mode since ib2 and l2 info are not
set properly copying airoha_foe_bridge struct into airoha_foe_ipv6 one
in airoha_ppe_foe_commit_subflow_entry routine.
Fix IPv6 hw acceleration in bridge mode resolving ib2 and
airoha_foe_mac_info_common overwrite in
airoha_ppe_foe_commit_subflow_entry() and configuring them with proper
values.

Fixes: cd53f62261 ("net: airoha: Add L2 hw acceleration 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-v2-2-3287f8b55214@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-03 12:55:29 +02:00
Lorenzo Bianconi
a869d3a5eb net: airoha: Initialize PPE UPDMEM source-mac table
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>
2025-06-03 12:55:29 +02:00
Paolo Abeni
f6bd8faeb1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Merge in late fixes to prepare for the 6.16 net-next PR.

No conflicts nor adjacent changes.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-28 10:11:15 +02:00
Christophe JAILLET
c59783780c net: airoha: Fix an error handling path in airoha_alloc_gdm_port()
If register_netdev() fails, the error handling path of the probe will not
free the memory allocated by the previous airoha_metadata_dst_alloc() call
because port->dev->reg_state will not be NETREG_REGISTERED.

So, an explicit airoha_metadata_dst_free() call is needed in this case to
avoid a memory leak.

Fixes: af3cf757d5 ("net: airoha: Move DSA tag in DMA descriptor")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1b94b91345017429ed653e2f05d25620dc2823f9.1746715755.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-27 17:20:10 -07:00
Lorenzo Bianconi
c683e378c0 net: airoha: Add the capability to allocate hfwd descriptors in SRAM
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>
2025-05-26 17:32:57 +02:00
Lorenzo Bianconi
3a1ce9e3d0 net: airoha: Add the capability to allocate hwfd buffers via reserved-memory
In some configurations QDMA blocks require a contiguous block of
system memory for hwfd buffers queue. Introduce the capability to allocate
hw buffers forwarding queue via the reserved-memory DTS property instead of
running dmam_alloc_coherent().

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250521-airopha-desc-sram-v3-3-a6e9b085b4f0@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-26 17:32:57 +02:00
Lorenzo Bianconi
09aa788f98 net: airoha: Do not store hfwd references in airoha_qdma struct
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>
2025-05-26 17:32:56 +02:00
Jakub Kicinski
33e1b1b399 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc8).

Conflicts:
  80f2ab46c2 ("irdma: free iwdev->rf after removing MSI-X")
  4bcc063939 ("ice, irdma: fix an off by one in error handling code")
  c24a65b6a2 ("iidc/ice/irdma: Update IDC to support multiple consumers")
https://lore.kernel.org/20250513130630.280ee6c5@canb.auug.org.au

No extra adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-22 09:42:41 -07:00
Lorenzo Bianconi
a98326c151 net: airoha: ppe: Disable packet keepalive
Since netfilter flowtable entries are now refreshed by flow-stats
polling, we can disable hw packet keepalive used to periodically send
packets belonging to offloaded flows to the kernel in order to refresh
flowtable entries.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-3-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20 20:00:51 -07:00
Lorenzo Bianconi
b81e0f2b58 net: airoha: Add FLOW_CLS_STATS callback support
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>
2025-05-20 20:00:51 -07:00
Lorenzo Bianconi
c52918744e net: airoha: npu: Move memory allocation in airoha_npu_send_msg() caller
Move ppe_mbox_data struct memory allocation from airoha_npu_send_msg
routine to the caller one. This is a preliminary patch to enable wlan NPU
offloading and flow counter stats support.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250516-airoha-en7581-flowstats-v2-1-06d5fbf28984@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-20 20:00:51 -07:00
Lorenzo Bianconi
d6d2b0e153 net: airoha: Fix page recycling in airoha_qdma_rx_process()
Do not recycle the page twice in airoha_qdma_rx_process routine in case
of error. Just run dev_kfree_skb() if the skb has been allocated and marked
for recycling. Run page_pool_put_full_page() directly if the skb has not
been allocated yet.
Moreover, rely on DMA address from queue entry element instead of reading
it from the DMA descriptor for DMA syncing in airoha_qdma_rx_process().

Fixes: e12182ddb6 ("net: airoha: Enable Rx Scatter-Gather")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250515-airoha-fix-rx-process-error-condition-v2-1-657e92c894b9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-16 16:35:45 -07:00
Jakub Kicinski
6b02fd7799 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.15-rc6).

No conflicts.

Adjacent changes:

net/core/dev.c:
  08e9f2d584 ("net: Lock netdevices during dev_shutdown")
  a82dc19db1 ("net: avoid potential race between netdev_get_by_index_lock() and netns switch")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-08 08:59:02 -07:00
Lorenzo Bianconi
4a7843cc8a net: airoha: Add missing field to ppe_mbox_data struct
The official Airoha EN7581 firmware requires adding max_packet field in
ppe_mbox_data struct while the unofficial one used to develop the Airoha
EN7581 flowtable support does not require this field.
This patch does not introduce any real backwards compatible issue since
EN7581 fw is not publicly available in linux-firmware or other
repositories (e.g. OpenWrt) yet and the official fw version will use this
new layout. For this reason this change needs to be backported.
Moreover, make explicit the padding added by the compiler introducing
the rsv array in init_info struct.
At the same time use u32 instead of int for init_info and set_info
struct definitions in ppe_mbox_data struct.

Fixes: 23290c7bc1 ("net: airoha: Introduce Airoha NPU support")
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250506-airoha-en7581-fix-ppe_mbox_data-v5-1-29cabed6864d@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-07 18:08:41 -07:00
Lorenzo Bianconi
f252493e18 net: airoha: Enable multiple IRQ lines support in airoha_eth driver.
EN7581 ethernet SoC supports 4 programmable IRQ lines for Tx and Rx
interrupts. Enable multiple IRQ lines support. Map Rx/Tx queues to the
available IRQ lines using the default scheme used in the vendor SDK:

- IRQ0: rx queues [0-4],[7-9],15
- IRQ1: rx queues [21-30]
- IRQ2: rx queues 5
- IRQ3: rx queues 6

Tx queues interrupts are managed by IRQ0.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250418-airoha-eth-multi-irq-v1-2-1ab0083ca3c1@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-23 17:03:53 -07:00
Lorenzo Bianconi
9439db26d3 net: airoha: Introduce airoha_irq_bank struct
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>
2025-04-23 17:03:53 -07:00
Lorenzo Bianconi
df8398fb7b net: airoha: Add matchall filter offload support
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>
2025-04-17 10:31:57 +02:00
Lorenzo Bianconi
cd53f62261 net: airoha: Add L2 hw acceleration support
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>
2025-04-11 20:15:36 -07:00
Lorenzo Bianconi
b4916f6790 net: airoha: Add l2_flows rhashtable
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>
2025-04-11 20:15:36 -07:00
Lorenzo Bianconi
09bccf56db net: airoha: Validate egress gdm port in airoha_ppe_foe_entry_prepare()
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>
2025-04-03 15:18:16 -07:00
Lorenzo Bianconi
367579274f net: airoha: Fix ETS priomap validation
ETS Qdisc schedules SP bands in a priority order assigning band-0 the
highest priority (band-0 > band-1 > .. > band-n) while EN7581 arranges
SP bands in a priority order assigning band-7 the highest priority
(band-7 > band-6, .. > band-n).
Fix priomap check in airoha_qdma_set_tx_ets_sched routine in order to
align ETS Qdisc and airoha_eth driver SP priority ordering.

Fixes: b56e4d660a ("net: airoha: Enforce ETS Qdisc priomap")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/20250331-airoha-ets-validate-priomap-v1-1-60a524488672@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-02 16:06:15 -07:00
Lorenzo Bianconi
57b290d97c net: airoha: Fix qid report in airoha_tc_get_htb_get_leaf_queue()
Fix the following kernel warning deleting HTB offloaded leafs and/or root
HTB qdisc in airoha_eth driver properly reporting qid in
airoha_tc_get_htb_get_leaf_queue routine.

$tc qdisc replace dev eth1 root handle 10: htb offload
$tc class add dev eth1 arent 10: classid 10:4 htb rate 100mbit ceil 100mbit
$tc qdisc replace dev eth1 parent 10:4 handle 4: ets bands 8 \
 quanta 1514 3028 4542 6056 7570 9084 10598 12112
$tc qdisc del dev eth1 root

[   55.827864] ------------[ cut here ]------------
[   55.832493] WARNING: CPU: 3 PID: 2678 at 0xffffffc0798695a4
[   55.956510] CPU: 3 PID: 2678 Comm: tc Tainted: G           O 6.6.71 #0
[   55.963557] Hardware name: Airoha AN7581 Evaluation Board (DT)
[   55.969383] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   55.976344] pc : 0xffffffc0798695a4
[   55.979851] lr : 0xffffffc079869a20
[   55.983358] sp : ffffffc0850536a0
[   55.986665] x29: ffffffc0850536a0 x28: 0000000000000024 x27: 0000000000000001
[   55.993800] x26: 0000000000000000 x25: ffffff8008b19000 x24: ffffff800222e800
[   56.000935] x23: 0000000000000001 x22: 0000000000000000 x21: ffffff8008b19000
[   56.008071] x20: ffffff8002225800 x19: ffffff800379d000 x18: 0000000000000000
[   56.015206] x17: ffffffbf9ea59000 x16: ffffffc080018000 x15: 0000000000000000
[   56.022342] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000001
[   56.029478] x11: ffffffc081471008 x10: ffffffc081575a98 x9 : 0000000000000000
[   56.036614] x8 : ffffffc08167fd40 x7 : ffffffc08069e104 x6 : ffffff8007f86000
[   56.043748] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000001
[   56.050884] x2 : 0000000000000000 x1 : 0000000000000250 x0 : ffffff800222c000
[   56.058020] Call trace:
[   56.060459]  0xffffffc0798695a4
[   56.063618]  0xffffffc079869a20
[   56.066777]  __qdisc_destroy+0x40/0xa0
[   56.070528]  qdisc_put+0x54/0x6c
[   56.073748]  qdisc_graft+0x41c/0x648
[   56.077324]  tc_get_qdisc+0x168/0x2f8
[   56.080978]  rtnetlink_rcv_msg+0x230/0x330
[   56.085076]  netlink_rcv_skb+0x5c/0x128
[   56.088913]  rtnetlink_rcv+0x14/0x1c
[   56.092490]  netlink_unicast+0x1e0/0x2c8
[   56.096413]  netlink_sendmsg+0x198/0x3c8
[   56.100337]  ____sys_sendmsg+0x1c4/0x274
[   56.104261]  ___sys_sendmsg+0x7c/0xc0
[   56.107924]  __sys_sendmsg+0x44/0x98
[   56.111492]  __arm64_sys_sendmsg+0x20/0x28
[   56.115580]  invoke_syscall.constprop.0+0x58/0xfc
[   56.120285]  do_el0_svc+0x3c/0xbc
[   56.123592]  el0_svc+0x18/0x4c
[   56.126647]  el0t_64_sync_handler+0x118/0x124
[   56.131005]  el0t_64_sync+0x150/0x154
[   56.134660] ---[ end trace 0000000000000000 ]---

Fixes: ef1ca92713 ("net: airoha: Add sched HTB offload support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://patch.msgid.link/20250331-airoha-htb-qdisc-offload-del-fix-v1-1-4ea429c2c968@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-02 16:04:49 -07:00
Arnd Bergmann
08d0185e36 net: airoha: fix CONFIG_DEBUG_FS check
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>
2025-03-21 18:40:32 +01:00
Lorenzo Bianconi
e368d2a1e8 net: airoha: Fix dev->dsa_ptr check in airoha_get_dsa_tag()
Fix the following warning reported by Smatch static checker in
airoha_get_dsa_tag routine:

drivers/net/ethernet/airoha/airoha_eth.c:1722 airoha_get_dsa_tag()
warn: 'dp' isn't an ERR_PTR

dev->dsa_ptr can't be set to an error pointer, it can just be NULL.
Remove this check since it is already performed in netdev_uses_dsa().

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/netdev/Z8l3E0lGOcrel07C@lore-desk/T/#m54adc113fcdd8c5e6c5f65ffd60d8e8b1d483d90
Fixes: af3cf757d5 ("net: airoha: Move DSA tag in DMA descriptor")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250306-airoha-flowtable-fixes-v1-1-68d3c1296cdd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-07 19:40:23 -08:00
Lorenzo Bianconi
a202dfe31c net: airoha: Enable TSO/Scatter Gather for LAN port
Set net_device vlan_features in order to enable TSO and Scatter Gather
for DSA user ports.

Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250304-lan-enable-tso-v1-1-b398eb9976ba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06 16:44:58 -08:00
Lorenzo Bianconi
35ea4f06fd net: airoha: Fix lan4 support in airoha_qdma_get_gdm_port()
EN7581 SoC supports lan{1,4} ports on MT7530 DSA switch. Fix lan4
reported value in airoha_qdma_get_gdm_port routine.

Fixes: 23020f0493 ("net: airoha: Introduce ethernet support for EN7581 SoC")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250304-airoha-eth-fix-lan4-v1-1-832417da4bb5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06 16:44:25 -08:00
Lorenzo Bianconi
168ef0c1de net: airoha: Increase max mtu to 9k
EN7581 SoC supports 9k maximum MTU.

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-v1-4-283ebc61120e@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06 16:41:14 -08:00
Lorenzo Bianconi
03b1b69f06 net: airoha: Introduce airoha_dev_change_mtu callback
Add airoha_dev_change_mtu callback to update the MTU of a running
device.

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-v1-3-283ebc61120e@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06 16:41:14 -08:00
Lorenzo Bianconi
e12182ddb6 net: airoha: Enable Rx Scatter-Gather
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>
2025-03-06 16:41:13 -08:00
Lorenzo Bianconi
54d989d58d net: airoha: Move min/max packet len configuration in airoha_dev_open()
In order to align max allowed packet size to the configured mtu, move
REG_GDM_LEN_CFG configuration in airoha_dev_open routine.

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-v1-1-283ebc61120e@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-06 16:41:13 -08:00
Lorenzo Bianconi
3fe15c640f net: airoha: Introduce PPE debugfs support
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>
2025-03-04 13:22:10 +01:00
Lorenzo Bianconi
9cd451d414 net: airoha: Add loopback support for GDM2
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>
2025-03-04 13:22:10 +01:00