From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9DAD23F1661; Wed, 20 May 2026 17:23:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779297839; cv=none; b=nAI4SXaifq8dtAGZOJMkyjyWvtOwr1Hox/8SiItXfLwk9AB0bYtoimQmT9RmaapUVScqYm9rKkQmjyIxbSQYy7z/lSlvy3vWjSMowpdHhayqKgF9eBfcogpbZWIiNZ5KLXsUcDfb+tqJHPhVkg0jbW4cBPSy0ankv/wvefJ81Aw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779297839; c=relaxed/simple; bh=KOj2s3mtaI6pUhoFD7BAjB5XvVY0EUkK18bLpha9gwY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=T6cVXipZJTHAtUrTDsPc86/V+ynZYgfVPF2qDaoAbvhlpWuKIGEK7LNtB8uhq1ylQI9iwFJhzrMMuxIIyPnMVkHQGwO3qN1xOfYHaENjm0FPTARoP77mUWr8mblAmp/UNAe5Rf6IG4mYzqhRYdY//wX70pBVzhAyhAqzqcKRAu4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VIgF5xRi; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="VIgF5xRi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 067E11F000E9; Wed, 20 May 2026 17:23:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779297838; bh=hE2eMpbsYpeoPiED3wGMpfV4QZ/As49QP9+5PqdwK2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VIgF5xRiD7Kif3/o66PtgxdmmmASCH3qnA2EWZq6Wnp+Qy8RdQm6qfC8PZh+ghxz/ jCrsGtuHiFGL/L2ik97863SeqhrJxOfxpgTgjLZl3ixQQl/tOCFm7u1aVxSwSuspSn rD/lu6YRRp5dfN4B4ULISEslwxV4Gs65KHy4jps0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lorenzo Bianconi , Simon Horman , Paolo Abeni , Sasha Levin Subject: [PATCH 6.18 184/957] net: airoha: Add missing PPE configurations in airoha_ppe_hw_init() Date: Wed, 20 May 2026 18:11:07 +0200 Message-ID: <20260520162138.542861098@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162134.554764788@linuxfoundation.org> References: <20260520162134.554764788@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lorenzo Bianconi [ Upstream commit b9d8b856689d2b968495d79fe653d87fcb8ad98c ] 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 Reviewed-by: Simon Horman Link: https://patch.msgid.link/20260412-airoha_ppe_hw_init-missing-bits-v1-1-06ac670819e3@kernel.org Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/ethernet/airoha/airoha_ppe.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c index 4ed244557065d..81a7056e3510a 100644 --- a/drivers/net/ethernet/airoha/airoha_ppe.c +++ b/drivers/net/ethernet/airoha/airoha_ppe.c @@ -83,13 +83,13 @@ 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 | @@ -111,7 +111,15 @@ static void airoha_ppe_hw_init(struct airoha_ppe *ppe) FIELD_PREP(PPE_TB_CFG_SEARCH_MISS_MASK, 3) | FIELD_PREP(PPE_TB_ENTRY_SIZE_MASK, 0)); + 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), -- 2.53.0