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[84.229.253.184]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-41fd10cf8besm49870535e9.1.2024.05.11.05.44.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 May 2024 05:44:14 -0700 (PDT) From: Elad Yifee To: Cc: eladwf@gmail.com, Sam.Shih@mediatek.com, steven.liu@mediatek.com, bc-bocun.chen@mediatek.com, SkyLake.Huang@mediatek.com, Henry.Yen@mediatek.com, john@phrozen.org, Felix Fietkau , Sean Wang , Mark Lee , Lorenzo Bianconi , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH net RFC] net: ethernet: mtk_eth_soc: ppe: add source port comparison Date: Sat, 11 May 2024 15:42:26 +0300 Message-ID: <20240511124230.13991-1-eladwf@gmail.com> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Resolve packet loss issue on the following conditions: - utilizing multiple GMACs - device has more than 4GB DRAM - using PPE Signed-off-by: Elad Yifee --- drivers/net/ethernet/mediatek/mtk_ppe.c | 4 ++++ drivers/net/ethernet/mediatek/mtk_ppe_regs.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet= /mediatek/mtk_ppe.c index 6ce0db3a1a92..6415ba618ebf 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe.c @@ -1053,6 +1053,10 @@ void mtk_ppe_start(struct mtk_ppe *ppe) MTK_PPE_GLO_CFG_IP4_L4_CS_DROP | MTK_PPE_GLO_CFG_IP4_CS_DROP | MTK_PPE_GLO_CFG_FLOW_DROP_UPDATE; + + if (mtk_is_netsys_v2_or_greater(ppe->eth)) + val |=3D MTK_PPE_GLO_CFG_SP_CMP_EN; + ppe_w32(ppe, MTK_PPE_GLO_CFG, val); =20 ppe_w32(ppe, MTK_PPE_DEFAULT_CPU_PORT, 0); diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_regs.h b/drivers/net/eth= ernet/mediatek/mtk_ppe_regs.h index 3ce088eef0ef..61fea4b4b65b 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe_regs.h +++ b/drivers/net/ethernet/mediatek/mtk_ppe_regs.h @@ -18,6 +18,7 @@ #define MTK_PPE_GLO_CFG_UDP_LITE_EN BIT(10) #define MTK_PPE_GLO_CFG_UDP_LEN_DROP BIT(11) #define MTK_PPE_GLO_CFG_MCAST_ENTRIES GNEMASK(13, 12) +#define MTK_PPE_GLO_CFG_SP_CMP_EN BIT(25) #define MTK_PPE_GLO_CFG_BUSY BIT(31) =20 #define MTK_PPE_FLOW_CFG 0x204 --=20 2.44.0