From patchwork Sun Jun 11 00:38:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 691521 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 15E2FC7EE29 for ; Sun, 11 Jun 2023 00:39:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232588AbjFKAjM (ORCPT ); Sat, 10 Jun 2023 20:39:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229622AbjFKAjL (ORCPT ); Sat, 10 Jun 2023 20:39:11 -0400 Received: from pidgin.makrotopia.org (pidgin.makrotopia.org [185.142.180.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB7F130F6; Sat, 10 Jun 2023 17:39:09 -0700 (PDT) Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1q896o-0005EM-2E; Sun, 11 Jun 2023 00:39:06 +0000 Date: Sun, 11 Jun 2023 01:38:23 +0100 From: Daniel Golle To: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Russell King , AngeloGioacchino Del Regno , Matthias Brugger , Lorenzo Bianconi , Mark Lee , Sean Wang , John Crispin , Felix Fietkau , Conor Dooley , Krzysztof Kozlowski , Rob Herring , Paolo Abeni , Jakub Kicinski , Eric Dumazet , "David S. Miller" , Sam Shih Subject: [PATCH net-next 5/8] net: ethernet: mtk_eth_soc: add MTK_NETSYS_V3 capability bit Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Lorenzo Bianconi Introduce MTK_NETSYS_V3 bit in the device capabilities. This is a preliminary patch to introduce support for MT7988 SoC. Signed-off-by: Lorenzo Bianconi Signed-off-by: Daniel Golle --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 115 ++++++++++++++++---- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 37 ++++++- 2 files changed, 127 insertions(+), 25 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 45b6f85f0822c..d516917effca6 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -943,17 +943,32 @@ void mtk_stats_update_mac(struct mtk_mac *mac) mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x20 + offs); hw_stats->rx_flow_control_packets += mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x24 + offs); - hw_stats->tx_skip += - mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x28 + offs); - hw_stats->tx_collisions += - mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x2c + offs); - hw_stats->tx_bytes += - mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x30 + offs); - stats = mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x34 + offs); - if (stats) - hw_stats->tx_bytes += (stats << 32); - hw_stats->tx_packets += - mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x38 + offs); + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + hw_stats->tx_skip += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x50 + offs); + hw_stats->tx_collisions += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x54 + offs); + hw_stats->tx_bytes += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x40 + offs); + stats = mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x44 + offs); + if (stats) + hw_stats->tx_bytes += (stats << 32); + hw_stats->tx_packets += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x48 + offs); + } else { + hw_stats->tx_skip += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x28 + offs); + hw_stats->tx_collisions += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x2c + offs); + hw_stats->tx_bytes += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x30 + offs); + stats = mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x34 + offs); + if (stats) + hw_stats->tx_bytes += (stats << 32); + hw_stats->tx_packets += + mtk_r32(mac->hw, reg_map->gdm1_cnt + 0x38 + offs); + } } u64_stats_update_end(&hw_stats->syncp); @@ -1257,7 +1272,10 @@ static void mtk_tx_set_dma_desc_v2(struct net_device *dev, void *txd, data |= TX_DMA_LS0; WRITE_ONCE(desc->txd3, data); - data = (mac->id + 1) << TX_DMA_FPORT_SHIFT_V2; /* forward port */ + if (mac->id == MTK_GMAC3_ID) + data = PSE_GDM3_PORT; + else + data = (mac->id + 1) << TX_DMA_FPORT_SHIFT_V2; /* forward port */ data |= TX_DMA_SWC_V2 | QID_BITS_V2(info->qid); WRITE_ONCE(desc->txd4, data); @@ -1268,6 +1286,9 @@ static void mtk_tx_set_dma_desc_v2(struct net_device *dev, void *txd, /* tx checksum offload */ if (info->csum) data |= TX_DMA_CHKSUM_V2; + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3) && + netdev_uses_dsa(dev)) + data |= TX_DMA_SPTAG_V3; } WRITE_ONCE(desc->txd5, data); @@ -1333,8 +1354,13 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, mtk_tx_set_dma_desc(dev, itxd, &txd_info); itx_buf->flags |= MTK_TX_FLAGS_SINGLE0; - itx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 : - MTK_TX_FLAGS_FPORT1; + if (mac->id == MTK_GMAC1_ID) + itx_buf->flags |= MTK_TX_FLAGS_FPORT0; + else if (mac->id == MTK_GMAC2_ID) + itx_buf->flags |= MTK_TX_FLAGS_FPORT1; + else + itx_buf->flags |= MTK_TX_FLAGS_FPORT2; + setup_tx_buf(eth, itx_buf, itxd_pdma, txd_info.addr, txd_info.size, k++); @@ -1382,8 +1408,13 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev, memset(tx_buf, 0, sizeof(*tx_buf)); tx_buf->data = (void *)MTK_DMA_DUMMY_DESC; tx_buf->flags |= MTK_TX_FLAGS_PAGE0; - tx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 : - MTK_TX_FLAGS_FPORT1; + + if (mac->id == MTK_GMAC1_ID) + tx_buf->flags |= MTK_TX_FLAGS_FPORT0; + else if (mac->id == MTK_GMAC2_ID) + tx_buf->flags |= MTK_TX_FLAGS_FPORT1; + else + tx_buf->flags |= MTK_TX_FLAGS_FPORT2; setup_tx_buf(eth, tx_buf, txd_pdma, txd_info.addr, txd_info.size, k++); @@ -1935,11 +1966,24 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, break; /* find out which mac the packet come from. values start at 1 */ - if (!MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V1)) - mac = RX_DMA_GET_SPORT_V2(trxd.rxd5) - 1; - else if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) && - !(trxd.rxd4 & RX_DMA_SPECIAL_TAG)) + if (!MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V1)) { + u32 val = RX_DMA_GET_SPORT_V2(trxd.rxd5); + + switch (val) { + case PSE_GDM1_PORT: + case PSE_GDM2_PORT: + mac = val - 1; + break; + case PSE_GDM3_PORT: + mac = MTK_GMAC3_ID; + break; + default: + break; + } + } else if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) && + !(trxd.rxd4 & RX_DMA_SPECIAL_TAG)) { mac = RX_DMA_GET_SPORT(trxd.rxd4) - 1; + } if (unlikely(mac < 0 || mac >= eth->soc->num_devs || !eth->netdev[mac])) @@ -2170,7 +2214,9 @@ static int mtk_poll_tx_qdma(struct mtk_eth *eth, int budget, tx_buf = mtk_desc_to_tx_buf(ring, desc, eth->soc->txrx.txd_size); if (tx_buf->flags & MTK_TX_FLAGS_FPORT1) - mac = 1; + mac = MTK_GMAC2_ID; + else if (tx_buf->flags & MTK_TX_FLAGS_FPORT2) + mac = MTK_GMAC3_ID; if (!tx_buf->data) break; @@ -3783,7 +3829,26 @@ static int mtk_hw_init(struct mtk_eth *eth, bool reset) mtk_w32(eth, eth->soc->txrx.rx_irq_done_mask, reg_map->qdma.int_grp + 4); mtk_w32(eth, 0x21021000, MTK_FE_INT_GRP); - if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + /* PSE should not drop port1, port8 and port9 packets */ + mtk_w32(eth, 0x00000302, PSE_DROP_CFG); + + /* GDM and CDM Threshold */ + mtk_w32(eth, 0x00000707, MTK_CDMW0_THRES); + mtk_w32(eth, 0x00000077, MTK_CDMW1_THRES); + + /* Disable GDM1 RX CRC stripping */ + val = mtk_r32(eth, MTK_GDMA_FWD_CFG(0)); + val &= ~MTK_GDMA_STRP_CRC; + mtk_w32(eth, val, MTK_GDMA_FWD_CFG(0)); + + /* PSE GDM3 MIB counter has incorrect hw default values, + * so the driver ought to read clear the values beforehand + * in case ethtool retrieve wrong mib values. + */ + for (i = 0; i < 0x80; i += 0x4) + mtk_r32(eth, reg_map->gdm1_cnt + 0x100 + i); + } else if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { /* PSE should not drop port8 and port9 packets from WDMA Tx */ mtk_w32(eth, 0x00000300, PSE_DROP_CFG); @@ -4356,7 +4421,11 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) } spin_lock_init(&mac->hw_stats->stats_lock); u64_stats_init(&mac->hw_stats->syncp); - mac->hw_stats->reg_offset = id * MTK_STAT_OFFSET; + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) + mac->hw_stats->reg_offset = id * 0x80; + else + mac->hw_stats->reg_offset = id * 0x40; /* phylink create */ err = of_get_phy_mode(np, &phy_mode); diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 2af7e46cadcbb..08d1e73985f08 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -122,6 +122,7 @@ #define MTK_GDMA_ICS_EN BIT(22) #define MTK_GDMA_TCS_EN BIT(21) #define MTK_GDMA_UCS_EN BIT(20) +#define MTK_GDMA_STRP_CRC BIT(16) #define MTK_GDMA_TO_PDMA 0x0 #define MTK_GDMA_DROP_ALL 0x7777 @@ -287,8 +288,6 @@ /* QDMA Interrupt grouping registers */ #define MTK_RLS_DONE_INT BIT(0) -#define MTK_STAT_OFFSET 0x40 - /* QDMA TX NUM */ #define QID_BITS_V2(x) (((x) & 0x3f) << 16) #define MTK_QDMA_GMAC2_QID 8 @@ -301,6 +300,8 @@ #define TX_DMA_CHKSUM_V2 (0x7 << 28) #define TX_DMA_TSO_V2 BIT(31) +#define TX_DMA_SPTAG_V3 BIT(27) + /* QDMA V2 descriptor txd4 */ #define TX_DMA_FPORT_SHIFT_V2 8 #define TX_DMA_FPORT_MASK_V2 0xf @@ -640,6 +641,7 @@ enum mtk_tx_flags { */ MTK_TX_FLAGS_FPORT0 = 0x04, MTK_TX_FLAGS_FPORT1 = 0x08, + MTK_TX_FLAGS_FPORT2 = 0x10, }; /* This enum allows us to identify how the clock is defined on the array of the @@ -725,6 +727,35 @@ enum mtk_dev_state { MTK_RESETTING }; +/* PSE Port Definition */ +enum mtk_pse_port { + PSE_ADMA_PORT = 0, + PSE_GDM1_PORT, + PSE_GDM2_PORT, + PSE_PPE0_PORT, + PSE_PPE1_PORT, + PSE_QDMA_TX_PORT, + PSE_QDMA_RX_PORT, + PSE_DROP_PORT, + PSE_WDMA0_PORT, + PSE_WDMA1_PORT, + PSE_TDMA_PORT, + PSE_NONE_PORT, + PSE_PPE2_PORT, + PSE_WDMA2_PORT, + PSE_EIP197_PORT, + PSE_GDM3_PORT, + PSE_PORT_MAX +}; + +/* GMAC Identifier */ +enum mtk_gmac_id { + MTK_GMAC1_ID = 0, + MTK_GMAC2_ID, + MTK_GMAC3_ID, + MTK_GMAC_ID_MAX +}; + enum mtk_tx_buf_type { MTK_TYPE_SKB, MTK_TYPE_XDP_TX, @@ -821,6 +852,7 @@ enum mkt_eth_capabilities { MTK_QDMA_BIT, MTK_NETSYS_V1_BIT, MTK_NETSYS_V2_BIT, + MTK_NETSYS_V3_BIT, MTK_SOC_MT7628_BIT, MTK_RSTCTRL_PPE1_BIT, MTK_U3_COPHY_V2_BIT, @@ -857,6 +889,7 @@ enum mkt_eth_capabilities { #define MTK_QDMA BIT(MTK_QDMA_BIT) #define MTK_NETSYS_V1 BIT(MTK_NETSYS_V1_BIT) #define MTK_NETSYS_V2 BIT(MTK_NETSYS_V2_BIT) +#define MTK_NETSYS_V3 BIT(MTK_NETSYS_V3_BIT) #define MTK_SOC_MT7628 BIT(MTK_SOC_MT7628_BIT) #define MTK_RSTCTRL_PPE1 BIT(MTK_RSTCTRL_PPE1_BIT) #define MTK_U3_COPHY_V2 BIT(MTK_U3_COPHY_V2_BIT)