diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2026-04-12 11:43:26 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2026-04-14 16:16:29 +0300 |
| commit | b9d8b856689d2b968495d79fe653d87fcb8ad98c (patch) | |
| tree | 118bc8acf4704bc0825f1a1d63c18b54ad31452f | |
| parent | 1acdfbdb516b32165a8ecd1d5f8c68e4eac64637 (diff) | |
| download | linux-b9d8b856689d2b968495d79fe653d87fcb8ad98c.tar.xz | |
net: airoha: Add missing PPE configurations in airoha_ppe_hw_init()
Add the following PPE configuration in airoha_ppe_hw_init routine:
- 6RD hw offloading is currently not supported by Netfilter flowtable.
Disable explicitly PPE 6RD offloading in order to prevent PPE to learn
6RD flows and eventually interrupt the traffic.
- Add missing PPE bind rate configuration for L3 and L2 traffic.
PPE bind rate configuration specifies the pps threshold to move a PPE
entry state from UNBIND to BIND. Without this configuration this value
is random.
- Set ageing thresholds to the values used in the vendor SDK in order to
improve connection stability under load and avoid packet loss caused by
fast aging.
Fixes: 00a7678310fe3 ("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/20260412-airoha_ppe_hw_init-missing-bits-v1-1-06ac670819e3@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/ethernet/airoha/airoha_ppe.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c index c2c32b6833df..62cfffb4f0e5 100644 --- a/drivers/net/ethernet/airoha/airoha_ppe.c +++ b/drivers/net/ethernet/airoha/airoha_ppe.c @@ -111,13 +111,13 @@ static void airoha_ppe_hw_init(struct airoha_ppe *ppe) airoha_fe_rmw(eth, REG_PPE_BND_AGE0(i), PPE_BIND_AGE0_DELTA_NON_L4 | PPE_BIND_AGE0_DELTA_UDP, - FIELD_PREP(PPE_BIND_AGE0_DELTA_NON_L4, 1) | - FIELD_PREP(PPE_BIND_AGE0_DELTA_UDP, 12)); + FIELD_PREP(PPE_BIND_AGE0_DELTA_NON_L4, 60) | + FIELD_PREP(PPE_BIND_AGE0_DELTA_UDP, 60)); airoha_fe_rmw(eth, REG_PPE_BND_AGE1(i), PPE_BIND_AGE1_DELTA_TCP_FIN | PPE_BIND_AGE1_DELTA_TCP, FIELD_PREP(PPE_BIND_AGE1_DELTA_TCP_FIN, 1) | - FIELD_PREP(PPE_BIND_AGE1_DELTA_TCP, 7)); + FIELD_PREP(PPE_BIND_AGE1_DELTA_TCP, 60)); airoha_fe_rmw(eth, REG_PPE_TB_HASH_CFG(i), PPE_SRAM_TABLE_EN_MASK | @@ -145,7 +145,15 @@ static void airoha_ppe_hw_init(struct airoha_ppe *ppe) FIELD_PREP(PPE_DRAM_TB_NUM_ENTRY_MASK, dram_num_entries)); + airoha_fe_rmw(eth, REG_PPE_BIND_RATE(i), + PPE_BIND_RATE_L2B_BIND_MASK | + PPE_BIND_RATE_BIND_MASK, + FIELD_PREP(PPE_BIND_RATE_L2B_BIND_MASK, 0x1e) | + FIELD_PREP(PPE_BIND_RATE_BIND_MASK, 0x1e)); + airoha_fe_wr(eth, REG_PPE_HASH_SEED(i), PPE_HASH_SEED); + airoha_fe_clear(eth, REG_PPE_PPE_FLOW_CFG(i), + PPE_FLOW_CFG_IP6_6RD_MASK); for (p = 0; p < ARRAY_SIZE(eth->ports); p++) airoha_fe_rmw(eth, REG_PPE_MTU(i, p), |