8f21d26411
Refreshed automatically with `make target/linux/refresh V=s`. Signed-off-by: Kenneth Kasilag <kenneth@kasilag.me> Link: https://github.com/openwrt/openwrt/pull/21019 Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
66 lines
2.3 KiB
Diff
66 lines
2.3 KiB
Diff
From 306b78f5035af4bd011753c5a6b12812515caa6c Mon Sep 17 00:00:00 2001
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Fri, 17 Oct 2025 11:06:17 +0200
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Subject: [PATCH 07/12] net: airoha: ppe: Configure SRAM PPE entries via the
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cpu
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Introduce airoha_ppe_foe_commit_sram_entry routine in order to configure
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the SRAM PPE entries directly via the CPU instead of using the NPU APIs.
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This is a preliminary patch to enable netfilter flowtable hw offload for
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AN7583 SoC.
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Reviewed-by: Simon Horman <horms@kernel.org>
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Link: https://patch.msgid.link/20251017-an7583-eth-support-v3-8-f28319666667@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 | 30 ++++++++++++++++++------
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1 file changed, 23 insertions(+), 7 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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@@ -669,6 +669,27 @@ static bool airoha_ppe_foe_compare_entry
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return !memcmp(&e->data.d, &hwe->d, len - sizeof(hwe->ib1));
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}
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+static int airoha_ppe_foe_commit_sram_entry(struct airoha_ppe *ppe, u32 hash)
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+{
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+ struct airoha_foe_entry *hwe = ppe->foe + hash * sizeof(*hwe);
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+ bool ppe2 = hash >= PPE_SRAM_NUM_ENTRIES;
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+ u32 *ptr = (u32 *)hwe, val;
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+ int i;
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+
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+ for (i = 0; i < sizeof(*hwe) / sizeof(*ptr); i++)
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+ airoha_fe_wr(ppe->eth, REG_PPE_RAM_ENTRY(ppe2, i), ptr[i]);
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+
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+ wmb();
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+ airoha_fe_wr(ppe->eth, REG_PPE_RAM_CTRL(ppe2),
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+ FIELD_PREP(PPE_SRAM_CTRL_ENTRY_MASK, hash) |
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+ PPE_SRAM_CTRL_WR_MASK | PPE_SRAM_CTRL_REQ_MASK);
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+
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+ return read_poll_timeout_atomic(airoha_fe_rr, val,
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+ val & PPE_SRAM_CTRL_ACK_MASK,
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+ 10, 100, false, ppe->eth,
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+ REG_PPE_RAM_CTRL(ppe2));
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+}
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+
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static int airoha_ppe_foe_commit_entry(struct airoha_ppe *ppe,
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struct airoha_foe_entry *e,
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u32 hash, bool rx_wlan)
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@@ -698,13 +719,8 @@ static int airoha_ppe_foe_commit_entry(s
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if (!rx_wlan)
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airoha_ppe_foe_flow_stats_update(ppe, npu, hwe, hash);
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- if (hash < sram_num_entries) {
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- dma_addr_t addr = ppe->foe_dma + hash * sizeof(*hwe);
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- bool ppe2 = hash >= PPE_SRAM_NUM_ENTRIES;
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-
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- err = npu->ops.ppe_foe_commit_entry(npu, addr, sizeof(*hwe),
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- hash, ppe2);
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- }
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+ if (hash < sram_num_entries)
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+ err = airoha_ppe_foe_commit_sram_entry(ppe, hash);
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unlock:
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rcu_read_unlock();
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