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From: Lorenzo Bianconi <lorenzo@kernel.org>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
	 "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	 Jakub Kicinski <kuba@kernel.org>,
	Paolo Abeni <pabeni@redhat.com>,
	 Lorenzo Bianconi <lorenzo@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org,
	 linux-mediatek@lists.infradead.org, netdev@vger.kernel.org
Subject: [PATCH net-next] net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration
Date: Sun, 12 Apr 2026 11:56:25 +0200	[thread overview]
Message-ID: <20260412-airoha_fe_init_remove_mc_en_bit-v1-1-7b6a5a25a74d@kernel.org> (raw)

PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration performed in
airoha_fe_init() is used to duplicate multicast packets and send a copy
to the CPU when the traffic is offloaded. This is necessary just if
it is requested by the user. Disable multicast packets duplication by
default.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/ethernet/airoha/airoha_eth.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 8e4b043af4bc..9b5b677a7071 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -458,9 +458,8 @@ static int airoha_fe_init(struct airoha_eth *eth)
 		      FIELD_PREP(PSE_IQ_RES2_P5_MASK, 0x40) |
 		      FIELD_PREP(PSE_IQ_RES2_P4_MASK, 0x34));
 
-	/* enable FE copy engine for MC/KA/DPI */
-	airoha_fe_wr(eth, REG_FE_PCE_CFG,
-		     PCE_DPI_EN_MASK | PCE_KA_EN_MASK | PCE_MC_EN_MASK);
+	/* enable FE copy engine for KA/DPI */
+	airoha_fe_wr(eth, REG_FE_PCE_CFG, PCE_DPI_EN_MASK | PCE_KA_EN_MASK);
 	/* set vip queue selection to ring 1 */
 	airoha_fe_rmw(eth, REG_CDM_FWD_CFG(1), CDM_VIP_QSEL_MASK,
 		      FIELD_PREP(CDM_VIP_QSEL_MASK, 0x4));

---
base-commit: 3f3a2aefbc661b837c8e344f944982d61c2ae037
change-id: 20260412-airoha_fe_init_remove_mc_en_bit-a89d7fcc5fc6

Best regards,
-- 
Lorenzo Bianconi <lorenzo@kernel.org>



             reply	other threads:[~2026-04-12  9:56 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-12  9:56 Lorenzo Bianconi [this message]
2026-04-14  0:20 ` [PATCH net-next] net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration patchwork-bot+netdevbpf

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