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Christian Marangi
49d7ee7d5b
Backport upstream memory leak patch merged upstream and even more
preliminary patch for multi-serdes rewrk.
(cherry picked from commit 155c610962)
Link: https://github.com/openwrt/openwrt/pull/23046
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
63 lines
2.7 KiB
Diff
63 lines
2.7 KiB
Diff
From b9d8b856689d2b968495d79fe653d87fcb8ad98c Mon Sep 17 00:00:00 2001
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Sun, 12 Apr 2026 10:43:26 +0200
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Subject: [PATCH] net: airoha: Add missing PPE configurations in
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airoha_ppe_hw_init()
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Add the following PPE configuration in airoha_ppe_hw_init routine:
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- 6RD hw offloading is currently not supported by Netfilter flowtable.
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Disable explicitly PPE 6RD offloading in order to prevent PPE to learn
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6RD flows and eventually interrupt the traffic.
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- Add missing PPE bind rate configuration for L3 and L2 traffic.
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PPE bind rate configuration specifies the pps threshold to move a PPE
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entry state from UNBIND to BIND. Without this configuration this value
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is random.
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- Set ageing thresholds to the values used in the vendor SDK in order to
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improve connection stability under load and avoid packet loss caused by
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fast aging.
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Fixes: 00a7678310fe3 ("net: airoha: Introduce flowtable offload support")
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Reviewed-by: Simon Horman <horms@kernel.org>
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Link: https://patch.msgid.link/20260412-airoha_ppe_hw_init-missing-bits-v1-1-06ac670819e3@kernel.org
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Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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---
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drivers/net/ethernet/airoha/airoha_ppe.c | 14 +++++++++++---
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1 file changed, 11 insertions(+), 3 deletions(-)
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--- a/drivers/net/ethernet/airoha/airoha_ppe.c
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+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
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@@ -125,13 +125,13 @@ static void airoha_ppe_hw_init(struct ai
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airoha_fe_rmw(eth, REG_PPE_BND_AGE0(i),
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PPE_BIND_AGE0_DELTA_NON_L4 |
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PPE_BIND_AGE0_DELTA_UDP,
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- FIELD_PREP(PPE_BIND_AGE0_DELTA_NON_L4, 1) |
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- FIELD_PREP(PPE_BIND_AGE0_DELTA_UDP, 12));
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+ FIELD_PREP(PPE_BIND_AGE0_DELTA_NON_L4, 60) |
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+ FIELD_PREP(PPE_BIND_AGE0_DELTA_UDP, 60));
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airoha_fe_rmw(eth, REG_PPE_BND_AGE1(i),
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PPE_BIND_AGE1_DELTA_TCP_FIN |
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PPE_BIND_AGE1_DELTA_TCP,
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FIELD_PREP(PPE_BIND_AGE1_DELTA_TCP_FIN, 1) |
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- FIELD_PREP(PPE_BIND_AGE1_DELTA_TCP, 7));
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+ FIELD_PREP(PPE_BIND_AGE1_DELTA_TCP, 60));
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airoha_fe_rmw(eth, REG_PPE_TB_HASH_CFG(i),
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PPE_SRAM_TABLE_EN_MASK |
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@@ -159,7 +159,15 @@ static void airoha_ppe_hw_init(struct ai
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FIELD_PREP(PPE_DRAM_TB_NUM_ENTRY_MASK,
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dram_num_entries));
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+ airoha_fe_rmw(eth, REG_PPE_BIND_RATE(i),
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+ PPE_BIND_RATE_L2B_BIND_MASK |
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+ PPE_BIND_RATE_BIND_MASK,
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+ FIELD_PREP(PPE_BIND_RATE_L2B_BIND_MASK, 0x1e) |
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+ FIELD_PREP(PPE_BIND_RATE_BIND_MASK, 0x1e));
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+
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airoha_fe_wr(eth, REG_PPE_HASH_SEED(i), PPE_HASH_SEED);
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+ airoha_fe_clear(eth, REG_PPE_PPE_FLOW_CFG(i),
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+ PPE_FLOW_CFG_IP6_6RD_MASK);
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for (p = 0; p < ARRAY_SIZE(eth->ports); p++) {
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struct airoha_gdm_port *port = eth->ports[p];
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