From patchwork Tue Jan 30 16:08:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elad Yifee X-Patchwork-Id: 13537670 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 34B3EC47DA9 for ; Tue, 30 Jan 2024 16:09:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=uGdpIQ3h7USVCYzxg0c4UgIyLi+Uz0SXFUiMKfQCYHM=; b=KgK25SOaMvSYiZH1KlO5VYcsaH b1/SWeuI4ugl3RH1KGqT8cbH7qi5lsq+U445gh1VRajKx7xrg9q1McyYP/7zKd9TEhbfmyLVANiQc LbmHq70eVHHJP7HTRc/GghO1S9g4ecBEo8QRFBohipMm8pad4CzTDMdYU9d2IjnAPYhFuswjMl88Z cwzaIp8jZ9b+kqlznd1SEisR4Wkg9MXIZsZmKHH3iFIRc32o3eZa/zrl/+gYz+38KuaLAdhwHJv0K y2P+V4alKbNnRceV189X8cEl+s8NbbJ8cnuhZPkidrcyaKVRO+XA4sMCaIJmdJ0nu5gyFD8uhomcW +7en952Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUqg3-0000000HJ3g-3gET; Tue, 30 Jan 2024 16:09:35 +0000 Received: from mail-wm1-x329.google.com ([2a00:1450:4864:20::329]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUqg0-0000000HJ2Z-3lKs; Tue, 30 Jan 2024 16:09:34 +0000 Received: by mail-wm1-x329.google.com with SMTP id 5b1f17b1804b1-40fafc8bd6dso3983255e9.0; Tue, 30 Jan 2024 08:09:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1706630970; x=1707235770; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=uGdpIQ3h7USVCYzxg0c4UgIyLi+Uz0SXFUiMKfQCYHM=; b=kC07+jfHSc0nIFN/uKlsUdPfgpFXgawLkEKkJq5osg/JL6bQLsGqEqE9f0JNh5l2g8 ZvqdRNuG6LUAHrpPz54vNYCUqzqTDi8VhbZH7PQ560Puf2OyTlhz1yfCRD6Bq9ekMhNx 5KLXD9z4Wv3G74oiG+Py3DX40gOQk6KWhJgrOharUHv97jNn7jldyqaXOXXga9AurEXa B6/3cjtUNIZxVN34w8FYNp6c0T6nBI2RfvAvvtWnTr9qdZIWc2ikcXCEIBIs6mYM9aOI u9xiJ8g7jdKUoBHgon5R/qzQBHndRAtay4VO1cnmY6Xth7SArbRnDvtMxqn5gJNo/LIc 4rsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706630970; x=1707235770; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=uGdpIQ3h7USVCYzxg0c4UgIyLi+Uz0SXFUiMKfQCYHM=; b=XayoBWPg5va72R9EadtySjbqU9t2ry65gFPkZ9G3BgZWRrmVJz6uKrSbG5vWsF1fkC 2zHK/wA5O01WaIrNyfI2JKqe92V/+COVSr6uYAxufyj0zpRoY3Drvb6o9WABRTwpIlkX hJEYc4KsmbEZfdS1JuTmbz8zTCcbVoEiiRiBgBCd33fEc+1HDUihaTqyMDeXNfhUSkwX uPoEBFjPrjWPqotE86RYE0fnhF2xmD2w4o3ZddN87CI+xPmvAr6FNM1Ij4rRSAtMIGhw +7TUjJJwNKAmQzps+mAM83y4SFBqnNhbLsXrQClRIxTtWXemBVB3uaZLP1Wg4pA4ATZ3 zgXQ== X-Gm-Message-State: AOJu0YxchVUTXrmKD6zzkmhW/5SU8mLZwQdKlj6JATejsCLXDObpdqaK bRzZmgFXczGwm+mEFlSidQJXDQYC4LJ0KG9fOQOpRKcwET7w02E/ X-Google-Smtp-Source: AGHT+IGWFnJrRxLBHumfHhI1WBj7sgb0ex91I19YCMtOUFEnhpMWS9ZsJLWMPQLIEI5GPzONDB11wA== X-Received: by 2002:a1c:4b19:0:b0:40e:46b6:bc48 with SMTP id y25-20020a1c4b19000000b0040e46b6bc48mr7040329wma.41.1706630970210; Tue, 30 Jan 2024 08:09:30 -0800 (PST) Received: from localhost.localdomain ([176.230.105.209]) by smtp.gmail.com with ESMTPSA id n4-20020a5d4c44000000b0033aeda49732sm5725756wrt.33.2024.01.30.08.09.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jan 2024 08:09:29 -0800 (PST) From: Elad Yifee To: Cc: eladwf@gmail.com, Felix Fietkau , Sean Wang , Mark Lee , Lorenzo Bianconi , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , Russell King , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH RFC] net: ethernet: mtk_eth_soc: ppe: add support for multiple PPEs Date: Tue, 30 Jan 2024 18:08:49 +0200 Message-ID: <20240130160854.5221-1-eladwf@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240130_080932_970892_D817F8D2 X-CRM114-Status: GOOD ( 25.75 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add the missing pieces to allow multiple PPEs units, one for each GMAC. mtk_gdm_config has been modified to work on targted mac ID, the inner loop moved outside of the function to allow unrelated operations like setting the MAC's PPE index. Signed-off-by: Elad Yifee --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 79 +++++++++++-------- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 15 +++- .../net/ethernet/mediatek/mtk_ppe_offload.c | 6 +- 3 files changed, 62 insertions(+), 38 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index a6e91573f8da..ba4e54977f34 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2176,7 +2176,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, } if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED) - mtk_ppe_check_skb(eth->ppe[0], skb, hash); + mtk_ppe_check_skb(eth->ppe[eth->mac[mac]->ppe_idx], skb, hash); skb_record_rx_queue(skb, 0); napi_gro_receive(napi, skb); @@ -3267,37 +3267,27 @@ static int mtk_start_dma(struct mtk_eth *eth) return 0; } -static void mtk_gdm_config(struct mtk_eth *eth, u32 config) +static void mtk_gdm_config(struct mtk_eth *eth, u32 id, u32 config) { - int i; + u32 val; if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) return; - for (i = 0; i < MTK_MAX_DEVS; i++) { - u32 val; - - if (!eth->netdev[i]) - continue; + val = mtk_r32(eth, MTK_GDMA_FWD_CFG(id)); - val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i)); + /* default setup the forward port to send frame to PDMA */ + val &= ~0xffff; - /* default setup the forward port to send frame to PDMA */ - val &= ~0xffff; + /* Enable RX checksum */ + val |= MTK_GDMA_ICS_EN | MTK_GDMA_TCS_EN | MTK_GDMA_UCS_EN; - /* Enable RX checksum */ - val |= MTK_GDMA_ICS_EN | MTK_GDMA_TCS_EN | MTK_GDMA_UCS_EN; + val |= config; - val |= config; + if (eth->netdev[id] && netdev_uses_dsa(eth->netdev[id])) + val |= MTK_GDMA_SPECIAL_TAG; - if (netdev_uses_dsa(eth->netdev[i])) - val |= MTK_GDMA_SPECIAL_TAG; - - mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i)); - } - /* Reset and enable PSE */ - mtk_w32(eth, RST_GL_PSE, MTK_RST_GL); - mtk_w32(eth, 0, MTK_RST_GL); + mtk_w32(eth, val, MTK_GDMA_FWD_CFG(id)); } @@ -3369,6 +3359,7 @@ static int mtk_open(struct net_device *dev) /* we run 2 netdevs on the same dma ring so we only bring it up once */ if (!refcount_read(ð->dma_refcnt)) { const struct mtk_soc_data *soc = eth->soc; + const u32 ppe_num = mtk_get_ppe_num(eth); u32 gdm_config; int i; @@ -3381,17 +3372,36 @@ static int mtk_open(struct net_device *dev) for (i = 0; i < ARRAY_SIZE(eth->ppe); i++) mtk_ppe_start(eth->ppe[i]); - gdm_config = soc->offload_version ? soc->reg_map->gdma_to_ppe - : MTK_GDMA_TO_PDMA; - mtk_gdm_config(eth, gdm_config); + for (i = 0; i < MTK_MAX_DEVS; i++) { + if (!eth->netdev[i]) + break; + struct mtk_mac *target_mac = netdev_priv(eth->netdev[i]); + + if (!soc->offload_version) { + target_mac->ppe_idx = 0; + gdm_config = MTK_GDMA_TO_PDMA; + } else if (ppe_num >= 3 && target_mac->id == 2) { + target_mac->ppe_idx = 2; + gdm_config = MTK_GDMA_TO_PPE2; + } else if (ppe_num >= 2 && target_mac->id == 1) { + target_mac->ppe_idx = 1; + gdm_config = MTK_GDMA_TO_PPE1; + } else { + target_mac->ppe_idx = 0; + gdm_config = soc->reg_map->gdma_to_ppe; + } + mtk_gdm_config(eth, target_mac->id, gdm_config); + } + /* Reset and enable PSE */ + mtk_w32(eth, RST_GL_PSE, MTK_RST_GL); + mtk_w32(eth, 0, MTK_RST_GL); napi_enable(ð->tx_napi); napi_enable(ð->rx_napi); mtk_tx_irq_enable(eth, MTK_TX_DONE_INT); mtk_rx_irq_enable(eth, soc->txrx.rx_irq_done_mask); refcount_set(ð->dma_refcnt, 1); - } - else + } else refcount_inc(ð->dma_refcnt); phylink_start(mac->phylink); @@ -3469,7 +3479,8 @@ static int mtk_stop(struct net_device *dev) if (!refcount_dec_and_test(ð->dma_refcnt)) return 0; - mtk_gdm_config(eth, MTK_GDMA_DROP_ALL); + for (i = 0; i < MTK_MAX_DEVS; i++) + mtk_gdm_config(eth, i, MTK_GDMA_DROP_ALL); mtk_tx_irq_disable(eth, MTK_TX_DONE_INT); mtk_rx_irq_disable(eth, eth->soc->txrx.rx_irq_done_mask); @@ -4945,11 +4956,11 @@ static int mtk_probe(struct platform_device *pdev) } if (eth->soc->offload_version) { - u32 num_ppe = mtk_is_netsys_v2_or_greater(eth) ? 2 : 1; + u32 num_ppe = mtk_get_ppe_num(eth); num_ppe = min_t(u32, ARRAY_SIZE(eth->ppe), num_ppe); for (i = 0; i < num_ppe; i++) { - u32 ppe_addr = eth->soc->reg_map->ppe_base + i * 0x400; + u32 ppe_addr = eth->soc->reg_map->ppe_base + (i == 2 ? 0xC00 : i * 0x400); eth->ppe[i] = mtk_ppe_init(eth, eth->base + ppe_addr, i); @@ -4957,11 +4968,11 @@ static int mtk_probe(struct platform_device *pdev) err = -ENOMEM; goto err_deinit_ppe; } - } + err = mtk_eth_offload_init(eth, i); - err = mtk_eth_offload_init(eth); - if (err) - goto err_deinit_ppe; + if (err) + goto err_deinit_ppe; + } } for (i = 0; i < MTK_MAX_DEVS; i++) { diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 9ae3b8a71d0e..7654fa74e7fc 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -124,6 +124,8 @@ #define MTK_GDMA_UCS_EN BIT(20) #define MTK_GDMA_STRP_CRC BIT(16) #define MTK_GDMA_TO_PDMA 0x0 +#define MTK_GDMA_TO_PPE1 0x4444 +#define MTK_GDMA_TO_PPE2 0xcccc #define MTK_GDMA_DROP_ALL 0x7777 /* GDM Egress Control Register */ @@ -1286,7 +1288,7 @@ struct mtk_eth { struct metadata_dst *dsa_meta[MTK_MAX_DSA_PORTS]; - struct mtk_ppe *ppe[2]; + struct mtk_ppe *ppe[3]; struct rhashtable flow_table; struct bpf_prog __rcu *prog; @@ -1311,6 +1313,7 @@ struct mtk_eth { struct mtk_mac { int id; phy_interface_t interface; + unsigned int ppe_idx; int speed; struct device_node *of_node; struct phylink *phylink; @@ -1421,6 +1424,14 @@ static inline u32 mtk_get_ib2_multicast_mask(struct mtk_eth *eth) return MTK_FOE_IB2_MULTICAST; } +static inline u32 mtk_get_ppe_num(struct mtk_eth *eth) +{ + if (!eth->soc->offload_version) + return 0; + + return eth->soc->version; +} + /* read the hardware status register */ void mtk_stats_update_mac(struct mtk_mac *mac); @@ -1432,7 +1443,7 @@ int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id); int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id); int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id); -int mtk_eth_offload_init(struct mtk_eth *eth); +int mtk_eth_offload_init(struct mtk_eth *eth, int id); int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type, void *type_data); int mtk_flow_offload_cmd(struct mtk_eth *eth, struct flow_cls_offload *cls, diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c index fbb5e9d5af13..220685f6daaa 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c @@ -570,7 +570,7 @@ mtk_eth_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_pri if (type != TC_SETUP_CLSFLOWER) return -EOPNOTSUPP; - return mtk_flow_offload_cmd(eth, cls, 0); + return mtk_flow_offload_cmd(eth, cls, mac->ppe_idx); } static int @@ -633,7 +633,9 @@ int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type, } } -int mtk_eth_offload_init(struct mtk_eth *eth) +int mtk_eth_offload_init(struct mtk_eth *eth, int id) { + if (!eth->ppe[id] || !eth->ppe[id]->foe_table) + return 0; return rhashtable_init(ð->flow_table, &mtk_flow_ht_params); }