From patchwork Tue Dec 19 21:32:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nabih Estefan X-Patchwork-Id: 13499134 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 15563C41535 for ; Tue, 19 Dec 2023 21:35:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rFhiv-0007fC-HB; Tue, 19 Dec 2023 16:33:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <3HQyCZQwKCnAbOPWVSghSTObUccUZS.QcaeSai-RSjSZbcbUbi.cfU@flex--nabihestefan.bounces.google.com>) id 1rFhiP-0007Tr-Nf for qemu-devel@nongnu.org; Tue, 19 Dec 2023 16:33:26 -0500 Received: from mail-yw1-x1149.google.com ([2607:f8b0:4864:20::1149]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <3HQyCZQwKCnAbOPWVSghSTObUccUZS.QcaeSai-RSjSZbcbUbi.cfU@flex--nabihestefan.bounces.google.com>) id 1rFhiJ-0003uC-7U for qemu-devel@nongnu.org; Tue, 19 Dec 2023 16:33:23 -0500 Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-5e7c4de7198so12156757b3.1 for ; Tue, 19 Dec 2023 13:33:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1703021597; x=1703626397; darn=nongnu.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=ZMguCZMl5zsWzCa39AkB3cRx8tslrwZBLyq35z/R7QY=; b=KAItBS+W0bF2GH1sdHDHNECG099LzYiH4sAGEburCJ/wzzdld2hSjyZr7Vc3A4IrcW TfGEOhm5/4c/3OqFj8jr+wdICxxoTdXv4ZljN1oEy3VMNebTvkn3LJGGd1K1g422ZhnT hZfh3SJ7LUN5PxMpnl5OmBvGyWeBW87zTf73HaXZ4QhcJ1O8FpN2j11NFTX8lh8nPmFi eXIKT4iU6lffE7PDbmWPn1Ij039+tKfRo9DcXT54EE3TIJ6BBDxZj7Y1XHH9Ij1A2581 dYoSHf8vkkFAo14uEWZoAMHeX5oicdxGw/XbQGbPK6IXOH0E1giqs53gNgUxM8Q024wG e6Cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703021597; x=1703626397; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ZMguCZMl5zsWzCa39AkB3cRx8tslrwZBLyq35z/R7QY=; b=OvOVkbdhpS3yBCRA2r5wT6JVd5p/uzhmseN2SVevOi0nWcksta9ojnnt5w8c/dbf1Y I5SnRl+GQCoq4fBk2+LZdmZajqLsG1ibLevPgjT9MWS2sEKte2ZDgXKKGbYnPKOH76mH 19bhsa0KA79z39+d3b75bnehmfb1ER8dUObGe+ev9lkKDSsAyd/p37IO97+sy4pq7KFE WEOV1x8e5UO59WGWhuGP+MCGM25KV5HeEBJj/VShr5x366e8gF/Xmhj+Pndj9TYf+DKD 29h6IAPRwe5LdHRcheOPtI4QzYed93LqGieOtt+S0E2p484YniQeQ7+ecSiDa68ZOFOK 0NIw== X-Gm-Message-State: AOJu0Yyu1kjLuxGZhLzMNq4svQrC/fs7hdWZTyEFpE89wQAFFdnrZu1H +dvG+oh9qaEp24bCrNvprrrq0wrlIq/iY79s0wI= X-Google-Smtp-Source: AGHT+IFf/YtBi+IU3syeP3FAq/MCtNMPpwozgXWl9/YhqQ4m5spUXRKTRnYGZJ35ugbGt1f5WnD+XqNiZQqa2VKnLVU= X-Received: from nabihestefan.c.googlers.com ([fda3:e722:ac3:cc00:20:ed76:c0a8:2737]) (user=nabihestefan job=sendgmr) by 2002:a05:690c:1e:b0:5d7:545e:3bd0 with SMTP id bc30-20020a05690c001e00b005d7545e3bd0mr2831511ywb.4.1703021597583; Tue, 19 Dec 2023 13:33:17 -0800 (PST) Date: Tue, 19 Dec 2023 21:32:49 +0000 In-Reply-To: <20231219213255.604535-1-nabihestefan@google.com> Mime-Version: 1.0 References: <20231219213255.604535-1-nabihestefan@google.com> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog Message-ID: <20231219213255.604535-5-nabihestefan@google.com> Subject: [PATCH v9 04/10] hw/net: Add NPCMXXX GMAC device From: Nabih Estefan To: peter.maydell@linaro.org Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, kfting@nuvoton.com, wuhaotsh@google.com, jasowang@redhat.com, avi.fishman@nuvoton.com, nabihestefan@google.com, kwliu@nuvoton.com, tomer.maimon@nuvoton.com, Hila.Miranda-Kuzi@nuvoton.com Received-SPF: pass client-ip=2607:f8b0:4864:20::1149; envelope-from=3HQyCZQwKCnAbOPWVSghSTObUccUZS.QcaeSai-RSjSZbcbUbi.cfU@flex--nabihestefan.bounces.google.com; helo=mail-yw1-x1149.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, USER_IN_DEF_DKIM_WL=-7.5 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Hao Wu This patch implements the basic registers of GMAC device and sets registers for networking functionalities. Tested: The following message shows up with the change: Broadcom BCM54612E stmmac-0:00: attached PHY driver [Broadcom BCM54612E] (mii_bus:phy_addr=stmmac-0:00, irq=POLL) stmmaceth f0802000.eth eth0: Link is Up - 1Gbps/Full - flow control rx/tx Signed-off-by: Hao Wu Signed-off-by: Nabih Estefan Diaz Reviewed-by: Tyrone Ting --- hw/net/meson.build | 2 +- hw/net/npcm_gmac.c | 424 +++++++++++++++++++++++++++++++++++++ hw/net/trace-events | 11 + include/hw/net/npcm_gmac.h | 340 +++++++++++++++++++++++++++++ 4 files changed, 776 insertions(+), 1 deletion(-) create mode 100644 hw/net/npcm_gmac.c create mode 100644 include/hw/net/npcm_gmac.h diff --git a/hw/net/meson.build b/hw/net/meson.build index f64651c467..db6509f504 100644 --- a/hw/net/meson.build +++ b/hw/net/meson.build @@ -38,7 +38,7 @@ system_ss.add(when: 'CONFIG_I82596_COMMON', if_true: files('i82596.c')) system_ss.add(when: 'CONFIG_SUNHME', if_true: files('sunhme.c')) system_ss.add(when: 'CONFIG_FTGMAC100', if_true: files('ftgmac100.c')) system_ss.add(when: 'CONFIG_SUNGEM', if_true: files('sungem.c')) -system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_emc.c')) +system_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_emc.c', 'npcm_gmac.c')) system_ss.add(when: 'CONFIG_ETRAXFS', if_true: files('etraxfs_eth.c')) system_ss.add(when: 'CONFIG_COLDFIRE', if_true: files('mcf_fec.c')) diff --git a/hw/net/npcm_gmac.c b/hw/net/npcm_gmac.c new file mode 100644 index 0000000000..98b3c33c94 --- /dev/null +++ b/hw/net/npcm_gmac.c @@ -0,0 +1,424 @@ +/* + * Nuvoton NPCM7xx/8xx GMAC Module + * + * Copyright 2022 Google LLC + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * Unsupported/unimplemented features: + * - MII is not implemented, MII_ADDR.BUSY and MII_DATA always return zero + * - Precision timestamp (PTP) is not implemented. + */ + +#include "qemu/osdep.h" + +#include "hw/registerfields.h" +#include "hw/net/mii.h" +#include "hw/net/npcm_gmac.h" +#include "migration/vmstate.h" +#include "qemu/log.h" +#include "qemu/units.h" +#include "sysemu/dma.h" +#include "trace.h" + +REG32(NPCM_DMA_BUS_MODE, 0x1000) +REG32(NPCM_DMA_XMT_POLL_DEMAND, 0x1004) +REG32(NPCM_DMA_RCV_POLL_DEMAND, 0x1008) +REG32(NPCM_DMA_RX_BASE_ADDR, 0x100c) +REG32(NPCM_DMA_TX_BASE_ADDR, 0x1010) +REG32(NPCM_DMA_STATUS, 0x1014) +REG32(NPCM_DMA_CONTROL, 0x1018) +REG32(NPCM_DMA_INTR_ENA, 0x101c) +REG32(NPCM_DMA_MISSED_FRAME_CTR, 0x1020) +REG32(NPCM_DMA_HOST_TX_DESC, 0x1048) +REG32(NPCM_DMA_HOST_RX_DESC, 0x104c) +REG32(NPCM_DMA_CUR_TX_BUF_ADDR, 0x1050) +REG32(NPCM_DMA_CUR_RX_BUF_ADDR, 0x1054) +REG32(NPCM_DMA_HW_FEATURE, 0x1058) + +REG32(NPCM_GMAC_MAC_CONFIG, 0x0) +REG32(NPCM_GMAC_FRAME_FILTER, 0x4) +REG32(NPCM_GMAC_HASH_HIGH, 0x8) +REG32(NPCM_GMAC_HASH_LOW, 0xc) +REG32(NPCM_GMAC_MII_ADDR, 0x10) +REG32(NPCM_GMAC_MII_DATA, 0x14) +REG32(NPCM_GMAC_FLOW_CTRL, 0x18) +REG32(NPCM_GMAC_VLAN_FLAG, 0x1c) +REG32(NPCM_GMAC_VERSION, 0x20) +REG32(NPCM_GMAC_WAKEUP_FILTER, 0x28) +REG32(NPCM_GMAC_PMT, 0x2c) +REG32(NPCM_GMAC_LPI_CTRL, 0x30) +REG32(NPCM_GMAC_TIMER_CTRL, 0x34) +REG32(NPCM_GMAC_INT_STATUS, 0x38) +REG32(NPCM_GMAC_INT_MASK, 0x3c) +REG32(NPCM_GMAC_MAC0_ADDR_HI, 0x40) +REG32(NPCM_GMAC_MAC0_ADDR_LO, 0x44) +REG32(NPCM_GMAC_MAC1_ADDR_HI, 0x48) +REG32(NPCM_GMAC_MAC1_ADDR_LO, 0x4c) +REG32(NPCM_GMAC_MAC2_ADDR_HI, 0x50) +REG32(NPCM_GMAC_MAC2_ADDR_LO, 0x54) +REG32(NPCM_GMAC_MAC3_ADDR_HI, 0x58) +REG32(NPCM_GMAC_MAC3_ADDR_LO, 0x5c) +REG32(NPCM_GMAC_RGMII_STATUS, 0xd8) +REG32(NPCM_GMAC_WATCHDOG, 0xdc) +REG32(NPCM_GMAC_PTP_TCR, 0x700) +REG32(NPCM_GMAC_PTP_SSIR, 0x704) +REG32(NPCM_GMAC_PTP_STSR, 0x708) +REG32(NPCM_GMAC_PTP_STNSR, 0x70c) +REG32(NPCM_GMAC_PTP_STSUR, 0x710) +REG32(NPCM_GMAC_PTP_STNSUR, 0x714) +REG32(NPCM_GMAC_PTP_TAR, 0x718) +REG32(NPCM_GMAC_PTP_TTSR, 0x71c) + +/* Register Fields */ +#define NPCM_GMAC_MII_ADDR_BUSY BIT(0) +#define NPCM_GMAC_MII_ADDR_WRITE BIT(1) +#define NPCM_GMAC_MII_ADDR_GR(rv) extract16((rv), 6, 5) +#define NPCM_GMAC_MII_ADDR_PA(rv) extract16((rv), 11, 5) + +#define NPCM_GMAC_INT_MASK_LPIIM BIT(10) +#define NPCM_GMAC_INT_MASK_PMTM BIT(3) +#define NPCM_GMAC_INT_MASK_RGIM BIT(0) + +#define NPCM_DMA_BUS_MODE_SWR BIT(0) + +static const uint32_t npcm_gmac_cold_reset_values[NPCM_GMAC_NR_REGS] = { + /* Reduce version to 3.2 so that the kernel can enable interrupt. */ + [R_NPCM_GMAC_VERSION] = 0x00001032, + [R_NPCM_GMAC_TIMER_CTRL] = 0x03e80000, + [R_NPCM_GMAC_MAC0_ADDR_HI] = 0x8000ffff, + [R_NPCM_GMAC_MAC0_ADDR_LO] = 0xffffffff, + [R_NPCM_GMAC_MAC1_ADDR_HI] = 0x0000ffff, + [R_NPCM_GMAC_MAC1_ADDR_LO] = 0xffffffff, + [R_NPCM_GMAC_MAC2_ADDR_HI] = 0x0000ffff, + [R_NPCM_GMAC_MAC2_ADDR_LO] = 0xffffffff, + [R_NPCM_GMAC_MAC3_ADDR_HI] = 0x0000ffff, + [R_NPCM_GMAC_MAC3_ADDR_LO] = 0xffffffff, + [R_NPCM_GMAC_PTP_TCR] = 0x00002000, + [R_NPCM_DMA_BUS_MODE] = 0x00020101, + [R_NPCM_DMA_HW_FEATURE] = 0x100d4f37, +}; + +static const uint16_t phy_reg_init[] = { + [MII_BMCR] = MII_BMCR_AUTOEN | MII_BMCR_FD | MII_BMCR_SPEED1000, + [MII_BMSR] = MII_BMSR_100TX_FD | MII_BMSR_100TX_HD | MII_BMSR_10T_FD | + MII_BMSR_10T_HD | MII_BMSR_EXTSTAT | MII_BMSR_AUTONEG | + MII_BMSR_LINK_ST | MII_BMSR_EXTCAP, + [MII_PHYID1] = 0x0362, + [MII_PHYID2] = 0x5e6a, + [MII_ANAR] = MII_ANAR_TXFD | MII_ANAR_TX | MII_ANAR_10FD | + MII_ANAR_10 | MII_ANAR_CSMACD, + [MII_ANLPAR] = MII_ANLPAR_ACK | MII_ANLPAR_PAUSE | + MII_ANLPAR_TXFD | MII_ANLPAR_TX | MII_ANLPAR_10FD | + MII_ANLPAR_10 | MII_ANLPAR_CSMACD, + [MII_ANER] = 0x64 | MII_ANER_NWAY, + [MII_ANNP] = 0x2001, + [MII_CTRL1000] = MII_CTRL1000_FULL, + [MII_STAT1000] = MII_STAT1000_FULL, + [MII_EXTSTAT] = 0x3000, /* 1000BASTE_T full-duplex capable */ +}; + +static void npcm_gmac_soft_reset(NPCMGMACState *gmac) +{ + memcpy(gmac->regs, npcm_gmac_cold_reset_values, + NPCM_GMAC_NR_REGS * sizeof(uint32_t)); + /* Clear reset bits */ + gmac->regs[R_NPCM_DMA_BUS_MODE] &= ~NPCM_DMA_BUS_MODE_SWR; +} + +static void gmac_phy_set_link(NPCMGMACState *gmac, bool active) +{ + /* Autonegotiation status mirrors link status. */ + if (active) { + gmac->phy_regs[0][MII_BMSR] |= (MII_BMSR_LINK_ST | MII_BMSR_AN_COMP); + } else { + gmac->phy_regs[0][MII_BMSR] &= ~(MII_BMSR_LINK_ST | MII_BMSR_AN_COMP); + } +} + +static bool gmac_can_receive(NetClientState *nc) +{ + return true; +} + +static ssize_t gmac_receive(NetClientState *nc, const uint8_t *buf, size_t len) +{ + /* Placeholder. Function will be filled in following patches */ + return 0; +} + +static void gmac_cleanup(NetClientState *nc) +{ + /* Nothing to do yet. */ +} + +static void gmac_set_link(NetClientState *nc) +{ + NPCMGMACState *gmac = qemu_get_nic_opaque(nc); + + trace_npcm_gmac_set_link(!nc->link_down); + gmac_phy_set_link(gmac, !nc->link_down); +} + +static void npcm_gmac_mdio_access(NPCMGMACState *gmac, uint16_t v) +{ + bool busy = v & NPCM_GMAC_MII_ADDR_BUSY; + uint8_t is_write; + uint8_t pa, gr; + uint16_t data; + + if (busy) { + is_write = v & NPCM_GMAC_MII_ADDR_WRITE; + pa = NPCM_GMAC_MII_ADDR_PA(v); + gr = NPCM_GMAC_MII_ADDR_GR(v); + /* Both pa and gr are 5 bits, so they are less than 32. */ + g_assert(pa < NPCM_GMAC_MAX_PHYS); + g_assert(gr < NPCM_GMAC_MAX_PHY_REGS); + + + if (v & NPCM_GMAC_MII_ADDR_WRITE) { + data = gmac->regs[R_NPCM_GMAC_MII_DATA]; + /* Clear reset bit for BMCR register */ + switch (gr) { + case MII_BMCR: + data &= ~MII_BMCR_RESET; + /* Autonegotiation is a W1C bit*/ + if (data & MII_BMCR_ANRESTART) { + /* Tells autonegotiation to not restart again */ + data &= ~MII_BMCR_ANRESTART; + } + if ((data & MII_BMCR_AUTOEN) && + !(gmac->phy_regs[pa][MII_BMSR] & MII_BMSR_AN_COMP)) { + /* sets autonegotiation as complete */ + gmac->phy_regs[pa][MII_BMSR] |= MII_BMSR_AN_COMP; + /* Resolve AN automatically->need to set this */ + gmac->phy_regs[0][MII_ANLPAR] = 0x0000; + } + } + gmac->phy_regs[pa][gr] = data; + } else { + data = gmac->phy_regs[pa][gr]; + gmac->regs[R_NPCM_GMAC_MII_DATA] = data; + } + trace_npcm_gmac_mdio_access(DEVICE(gmac)->canonical_path, is_write, pa, + gr, data); + } + gmac->regs[R_NPCM_GMAC_MII_ADDR] = v & ~NPCM_GMAC_MII_ADDR_BUSY; +} + +static uint64_t npcm_gmac_read(void *opaque, hwaddr offset, unsigned size) +{ + NPCMGMACState *gmac = opaque; + uint32_t v = 0; + + switch (offset) { + /* Write only registers */ + case A_NPCM_DMA_XMT_POLL_DEMAND: + case A_NPCM_DMA_RCV_POLL_DEMAND: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Read of write-only reg: offset: 0x%04" HWADDR_PRIx + "\n", DEVICE(gmac)->canonical_path, offset); + break; + + default: + v = gmac->regs[offset / sizeof(uint32_t)]; + } + + trace_npcm_gmac_reg_read(DEVICE(gmac)->canonical_path, offset, v); + return v; +} + +static void npcm_gmac_write(void *opaque, hwaddr offset, + uint64_t v, unsigned size) +{ + NPCMGMACState *gmac = opaque; + + trace_npcm_gmac_reg_write(DEVICE(gmac)->canonical_path, offset, v); + + switch (offset) { + /* Read only registers */ + case A_NPCM_GMAC_VERSION: + case A_NPCM_GMAC_INT_STATUS: + case A_NPCM_GMAC_RGMII_STATUS: + case A_NPCM_GMAC_PTP_STSR: + case A_NPCM_GMAC_PTP_STNSR: + case A_NPCM_DMA_MISSED_FRAME_CTR: + case A_NPCM_DMA_HOST_TX_DESC: + case A_NPCM_DMA_HOST_RX_DESC: + case A_NPCM_DMA_CUR_TX_BUF_ADDR: + case A_NPCM_DMA_CUR_RX_BUF_ADDR: + case A_NPCM_DMA_HW_FEATURE: + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Write of read-only reg: offset: 0x%04" HWADDR_PRIx + ", value: 0x%04" PRIx64 "\n", + DEVICE(gmac)->canonical_path, offset, v); + break; + + case A_NPCM_GMAC_MAC_CONFIG: + break; + + case A_NPCM_GMAC_MII_ADDR: + npcm_gmac_mdio_access(gmac, v); + break; + + case A_NPCM_GMAC_MAC0_ADDR_HI: + gmac->regs[offset / sizeof(uint32_t)] = v; + gmac->conf.macaddr.a[0] = v >> 8; + gmac->conf.macaddr.a[1] = v >> 0; + break; + + case A_NPCM_GMAC_MAC0_ADDR_LO: + gmac->regs[offset / sizeof(uint32_t)] = v; + gmac->conf.macaddr.a[2] = v >> 24; + gmac->conf.macaddr.a[3] = v >> 16; + gmac->conf.macaddr.a[4] = v >> 8; + gmac->conf.macaddr.a[5] = v >> 0; + break; + + case A_NPCM_GMAC_MAC1_ADDR_HI: + case A_NPCM_GMAC_MAC1_ADDR_LO: + case A_NPCM_GMAC_MAC2_ADDR_HI: + case A_NPCM_GMAC_MAC2_ADDR_LO: + case A_NPCM_GMAC_MAC3_ADDR_HI: + case A_NPCM_GMAC_MAC3_ADDR_LO: + gmac->regs[offset / sizeof(uint32_t)] = v; + qemu_log_mask(LOG_UNIMP, + "%s: Only MAC Address 0 is supported. This request " + "is ignored.\n", DEVICE(gmac)->canonical_path); + break; + + case A_NPCM_DMA_BUS_MODE: + gmac->regs[offset / sizeof(uint32_t)] = v; + if (v & NPCM_DMA_BUS_MODE_SWR) { + npcm_gmac_soft_reset(gmac); + } + break; + + case A_NPCM_DMA_RCV_POLL_DEMAND: + /* We dont actually care about the value */ + break; + + case A_NPCM_DMA_STATUS: + /* Check that RO bits are not written to */ + if (NPCM_DMA_STATUS_RO_MASK(v)) { + qemu_log_mask(LOG_GUEST_ERROR, + "%s: Write of read-only bits of reg: offset: 0x%04" + HWADDR_PRIx ", value: 0x%04" PRIx64 "\n", + DEVICE(gmac)->canonical_path, offset, v); + } + break; + + default: + gmac->regs[offset / sizeof(uint32_t)] = v; + break; + } + + gmac_update_irq(gmac); +} + +static void npcm_gmac_reset(DeviceState *dev) +{ + NPCMGMACState *gmac = NPCM_GMAC(dev); + + npcm_gmac_soft_reset(gmac); + memcpy(gmac->phy_regs[0], phy_reg_init, sizeof(phy_reg_init)); + + trace_npcm_gmac_reset(DEVICE(gmac)->canonical_path, + gmac->phy_regs[0][MII_BMSR]); +} + +static NetClientInfo net_npcm_gmac_info = { + .type = NET_CLIENT_DRIVER_NIC, + .size = sizeof(NICState), + .can_receive = gmac_can_receive, + .receive = gmac_receive, + .cleanup = gmac_cleanup, + .link_status_changed = gmac_set_link, +}; + +static const struct MemoryRegionOps npcm_gmac_ops = { + .read = npcm_gmac_read, + .write = npcm_gmac_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 4, + .max_access_size = 4, + .unaligned = false, + }, +}; + +static void npcm_gmac_realize(DeviceState *dev, Error **errp) +{ + NPCMGMACState *gmac = NPCM_GMAC(dev); + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + + memory_region_init_io(&gmac->iomem, OBJECT(gmac), &npcm_gmac_ops, gmac, + TYPE_NPCM_GMAC, 8 * KiB); + sysbus_init_mmio(sbd, &gmac->iomem); + sysbus_init_irq(sbd, &gmac->irq); + + qemu_macaddr_default_if_unset(&gmac->conf.macaddr); + + gmac->nic = qemu_new_nic(&net_npcm_gmac_info, &gmac->conf, TYPE_NPCM_GMAC, + dev->id, &dev->mem_reentrancy_guard, gmac); + qemu_format_nic_info_str(qemu_get_queue(gmac->nic), gmac->conf.macaddr.a); + gmac->regs[R_NPCM_GMAC_MAC0_ADDR_HI] = (gmac->conf.macaddr.a[0] << 8) + \ + gmac->conf.macaddr.a[1]; + gmac->regs[R_NPCM_GMAC_MAC0_ADDR_LO] = (gmac->conf.macaddr.a[2] << 24) + \ + (gmac->conf.macaddr.a[3] << 16) + \ + (gmac->conf.macaddr.a[4] << 8) + \ + gmac->conf.macaddr.a[5]; +} + +static void npcm_gmac_unrealize(DeviceState *dev) +{ + NPCMGMACState *gmac = NPCM_GMAC(dev); + + qemu_del_nic(gmac->nic); +} + +static const VMStateDescription vmstate_npcm_gmac = { + .name = TYPE_NPCM_GMAC, + .version_id = 0, + .minimum_version_id = 0, + .fields = (VMStateField[]) { + VMSTATE_UINT32_ARRAY(regs, NPCMGMACState, NPCM_GMAC_NR_REGS), + VMSTATE_END_OF_LIST(), + }, +}; + +static Property npcm_gmac_properties[] = { + DEFINE_NIC_PROPERTIES(NPCMGMACState, conf), + DEFINE_PROP_END_OF_LIST(), +}; + +static void npcm_gmac_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); + dc->desc = "NPCM GMAC Controller"; + dc->realize = npcm_gmac_realize; + dc->unrealize = npcm_gmac_unrealize; + dc->reset = npcm_gmac_reset; + dc->vmsd = &vmstate_npcm_gmac; + device_class_set_props(dc, npcm_gmac_properties); +} + +static const TypeInfo npcm_gmac_types[] = { + { + .name = TYPE_NPCM_GMAC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(NPCMGMACState), + .class_init = npcm_gmac_class_init, + }, +}; +DEFINE_TYPES(npcm_gmac_types) diff --git a/hw/net/trace-events b/hw/net/trace-events index 387e32e153..33514548b8 100644 --- a/hw/net/trace-events +++ b/hw/net/trace-events @@ -467,6 +467,17 @@ npcm7xx_emc_rx_done(uint32_t crxdsa) "RX done, CRXDSA=0x%x" npcm7xx_emc_reg_read(int emc_num, uint32_t result, const char *name, int regno) "emc%d: 0x%x = reg[%s/%d]" npcm7xx_emc_reg_write(int emc_num, const char *name, int regno, uint32_t value) "emc%d: reg[%s/%d] = 0x%x" +# npcm_gmac.c +npcm_gmac_reg_read(const char *name, uint64_t offset, uint32_t value) "%s: offset: 0x%04" PRIx64 " value: 0x%04" PRIx32 +npcm_gmac_reg_write(const char *name, uint64_t offset, uint32_t value) "%s: offset: 0x%04" PRIx64 " value: 0x%04" PRIx32 +npcm_gmac_mdio_access(const char *name, uint8_t is_write, uint8_t pa, uint8_t gr, uint16_t val) "%s: is_write: %" PRIu8 " pa: %" PRIu8 " gr: %" PRIu8 " val: 0x%04" PRIx16 +npcm_gmac_reset(const char *name, uint16_t value) "%s: phy_regs[0][1]: 0x%04" PRIx16 +npcm_gmac_set_link(bool active) "Set link: active=%u" + +# npcm_pcs.c +npcm_pcs_reg_read(const char *name, uint16_t indirect_access_baes, uint64_t offset, uint16_t value) "%s: IND: 0x%02" PRIx16 " offset: 0x%04" PRIx64 " value: 0x%04" PRIx16 +npcm_pcs_reg_write(const char *name, uint16_t indirect_access_baes, uint64_t offset, uint16_t value) "%s: IND: 0x%02" PRIx16 " offset: 0x%04" PRIx64 " value: 0x%04" PRIx16 + # dp8398x.c dp8393x_raise_irq(int isr) "raise irq, isr is 0x%04x" dp8393x_lower_irq(void) "lower irq" diff --git a/include/hw/net/npcm_gmac.h b/include/hw/net/npcm_gmac.h new file mode 100644 index 0000000000..d0a37e6988 --- /dev/null +++ b/include/hw/net/npcm_gmac.h @@ -0,0 +1,340 @@ +/* + * Nuvoton NPCM7xx/8xx GMAC Module + * + * Copyright 2022 Google LLC + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef NPCM_GMAC_H +#define NPCM_GMAC_H + +#include "hw/irq.h" +#include "hw/sysbus.h" +#include "net/net.h" + +#define NPCM_GMAC_NR_REGS (0x1060 / sizeof(uint32_t)) + +#define NPCM_GMAC_MAX_PHYS 32 +#define NPCM_GMAC_MAX_PHY_REGS 32 + +struct NPCMGMACRxDesc { + uint32_t rdes0; + uint32_t rdes1; + uint32_t rdes2; + uint32_t rdes3; +}; + +/* NPCMGMACRxDesc.flags values */ +/* RDES2 and RDES3 are buffer addresses */ +/* Owner: 0 = software, 1 = dma */ +#define RX_DESC_RDES0_OWN BIT(31) +/* Destination Address Filter Fail */ +#define RX_DESC_RDES0_DEST_ADDR_FILT_FAIL BIT(30) +/* Frame length */ +#define RX_DESC_RDES0_FRAME_LEN_MASK(word) extract32(word, 16, 14) +/* Frame length Shift*/ +#define RX_DESC_RDES0_FRAME_LEN_SHIFT 16 +/* Error Summary */ +#define RX_DESC_RDES0_ERR_SUMM_MASK BIT(15) +/* Descriptor Error */ +#define RX_DESC_RDES0_DESC_ERR_MASK BIT(14) +/* Source Address Filter Fail */ +#define RX_DESC_RDES0_SRC_ADDR_FILT_FAIL_MASK BIT(13) +/* Length Error */ +#define RX_DESC_RDES0_LEN_ERR_MASK BIT(12) +/* Overflow Error */ +#define RX_DESC_RDES0_OVRFLW_ERR_MASK BIT(11) +/* VLAN Tag */ +#define RX_DESC_RDES0_VLAN_TAG_MASK BIT(10) +/* First Descriptor */ +#define RX_DESC_RDES0_FIRST_DESC_MASK BIT(9) +/* Last Descriptor */ +#define RX_DESC_RDES0_LAST_DESC_MASK BIT(8) +/* IPC Checksum Error/Giant Frame */ +#define RX_DESC_RDES0_IPC_CHKSM_ERR_GNT_FRM_MASK BIT(7) +/* Late Collision */ +#define RX_DESC_RDES0_LT_COLL_MASK BIT(6) +/* Frame Type */ +#define RX_DESC_RDES0_FRM_TYPE_MASK BIT(5) +/* Receive Watchdog Timeout */ +#define RX_DESC_RDES0_REC_WTCHDG_TMT_MASK BIT(4) +/* Receive Error */ +#define RX_DESC_RDES0_RCV_ERR_MASK BIT(3) +/* Dribble Bit Error */ +#define RX_DESC_RDES0_DRBL_BIT_ERR_MASK BIT(2) +/* Cyclcic Redundancy Check Error */ +#define RX_DESC_RDES0_CRC_ERR_MASK BIT(1) +/* Rx MAC Address/Payload Checksum Error */ +#define RC_DESC_RDES0_RCE_MASK BIT(0) + +/* Disable Interrupt on Completion */ +#define RX_DESC_RDES1_DIS_INTR_COMP_MASK BIT(31) +/* Recieve end of ring */ +#define RX_DESC_RDES1_RC_END_RING_MASK BIT(25) +/* Second Address Chained */ +#define RX_DESC_RDES1_SEC_ADDR_CHND_MASK BIT(24) +/* Receive Buffer 2 Size */ +#define RX_DESC_RDES1_BFFR2_SZ_SHIFT 11 +#define RX_DESC_RDES1_BFFR2_SZ_MASK(word) extract32(word, \ + RX_DESC_RDES1_BFFR2_SZ_SHIFT, 11) +/* Receive Buffer 1 Size */ +#define RX_DESC_RDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 11) + + +struct NPCMGMACTxDesc { + uint32_t tdes0; + uint32_t tdes1; + uint32_t tdes2; + uint32_t tdes3; +}; + +/* NPCMGMACTxDesc.flags values */ +/* TDES2 and TDES3 are buffer addresses */ +/* Owner: 0 = software, 1 = gmac */ +#define TX_DESC_TDES0_OWN BIT(31) +/* Tx Time Stamp Status */ +#define TX_DESC_TDES0_TTSS_MASK BIT(17) +/* IP Header Error */ +#define TX_DESC_TDES0_IP_HEAD_ERR_MASK BIT(16) +/* Error Summary */ +#define TX_DESC_TDES0_ERR_SUMM_MASK BIT(15) +/* Jabber Timeout */ +#define TX_DESC_TDES0_JBBR_TMT_MASK BIT(14) +/* Frame Flushed */ +#define TX_DESC_TDES0_FRM_FLSHD_MASK BIT(13) +/* Payload Checksum Error */ +#define TX_DESC_TDES0_PYLD_CHKSM_ERR_MASK BIT(12) +/* Loss of Carrier */ +#define TX_DESC_TDES0_LSS_CARR_MASK BIT(11) +/* No Carrier */ +#define TX_DESC_TDES0_NO_CARR_MASK BIT(10) +/* Late Collision */ +#define TX_DESC_TDES0_LATE_COLL_MASK BIT(9) +/* Excessive Collision */ +#define TX_DESC_TDES0_EXCS_COLL_MASK BIT(8) +/* VLAN Frame */ +#define TX_DESC_TDES0_VLAN_FRM_MASK BIT(7) +/* Collision Count */ +#define TX_DESC_TDES0_COLL_CNT_MASK(word) extract32(word, 3, 4) +/* Excessive Deferral */ +#define TX_DESC_TDES0_EXCS_DEF_MASK BIT(2) +/* Underflow Error */ +#define TX_DESC_TDES0_UNDRFLW_ERR_MASK BIT(1) +/* Deferred Bit */ +#define TX_DESC_TDES0_DFRD_BIT_MASK BIT(0) + +/* Interrupt of Completion */ +#define TX_DESC_TDES1_INTERR_COMP_MASK BIT(31) +/* Last Segment */ +#define TX_DESC_TDES1_LAST_SEG_MASK BIT(30) +/* First Segment */ +#define TX_DESC_TDES1_FIRST_SEG_MASK BIT(29) +/* Checksum Insertion Control */ +#define TX_DESC_TDES1_CHKSM_INS_CTRL_MASK(word) extract32(word, 27, 2) +/* Disable Cyclic Redundancy Check */ +#define TX_DESC_TDES1_DIS_CDC_MASK BIT(26) +/* Transmit End of Ring */ +#define TX_DESC_TDES1_TX_END_RING_MASK BIT(25) +/* Secondary Address Chained */ +#define TX_DESC_TDES1_SEC_ADDR_CHND_MASK BIT(24) +/* Transmit Buffer 2 Size */ +#define TX_DESC_TDES1_BFFR2_SZ_MASK(word) extract32(word, 11, 11) +/* Transmit Buffer 1 Size */ +#define TX_DESC_TDES1_BFFR1_SZ_MASK(word) extract32(word, 0, 11) + +typedef struct NPCMGMACState { + SysBusDevice parent; + + MemoryRegion iomem; + qemu_irq irq; + + NICState *nic; + NICConf conf; + + uint32_t regs[NPCM_GMAC_NR_REGS]; + uint16_t phy_regs[NPCM_GMAC_MAX_PHYS][NPCM_GMAC_MAX_PHY_REGS]; +} NPCMGMACState; + +#define TYPE_NPCM_GMAC "npcm-gmac" +OBJECT_DECLARE_SIMPLE_TYPE(NPCMGMACState, NPCM_GMAC) + +/* Mask for RO bits in Status */ +#define NPCM_DMA_STATUS_RO_MASK(word) (word & 0xfffe0000) +/* Mask for RO bits in Status */ +#define NPCM_DMA_STATUS_W1C_MASK(word) (word & 0x1e7ff) + +/* Transmit Process State */ +#define NPCM_DMA_STATUS_TX_PROCESS_STATE_SHIFT 20 +/* Transmit States */ +#define NPCM_DMA_STATUS_TX_STOPPED_STATE \ + (0b000) +#define NPCM_DMA_STATUS_TX_RUNNING_FETCHING_STATE \ + (0b001) +#define NPCM_DMA_STATUS_TX_RUNNING_WAITING_STATE \ + (0b010) +#define NPCM_DMA_STATUS_TX_RUNNING_READ_STATE \ + (0b011) +#define NPCM_DMA_STATUS_TX_SUSPENDED_STATE \ + (0b110) +#define NPCM_DMA_STATUS_TX_RUNNING_CLOSING_STATE \ + (0b111) +/* Transmit Process State */ +#define NPCM_DMA_STATUS_RX_PROCESS_STATE_SHIFT 17 +/* Receive States */ +#define NPCM_DMA_STATUS_RX_STOPPED_STATE \ + (0b000) +#define NPCM_DMA_STATUS_RX_RUNNING_FETCHING_STATE \ + (0b001) +#define NPCM_DMA_STATUS_RX_RUNNING_WAITING_STATE \ + (0b011) +#define NPCM_DMA_STATUS_RX_SUSPENDED_STATE \ + (0b100) +#define NPCM_DMA_STATUS_RX_RUNNING_CLOSING_STATE \ + (0b101) +#define NPCM_DMA_STATUS_RX_RUNNING_TRANSFERRING_STATE \ + (0b111) + + +/* Early Receive Interrupt */ +#define NPCM_DMA_STATUS_ERI BIT(14) +/* Fatal Bus Error Interrupt */ +#define NPCM_DMA_STATUS_FBI BIT(13) +/* Early transmit Interrupt */ +#define NPCM_DMA_STATUS_ETI BIT(10) +/* Receive Watchdog Timout */ +#define NPCM_DMA_STATUS_RWT BIT(9) +/* Receive Process Stopped */ +#define NPCM_DMA_STATUS_RPS BIT(8) +/* Receive Buffer Unavailable */ +#define NPCM_DMA_STATUS_RU BIT(7) +/* Receive Interrupt */ +#define NPCM_DMA_STATUS_RI BIT(6) +/* Transmit Underflow */ +#define NPCM_DMA_STATUS_UNF BIT(5) +/* Receive Overflow */ +#define NPCM_DMA_STATUS_OVF BIT(4) +/* Transmit Jabber Timeout */ +#define NPCM_DMA_STATUS_TJT BIT(3) +/* Transmit Buffer Unavailable */ +#define NPCM_DMA_STATUS_TU BIT(2) +/* Transmit Process Stopped */ +#define NPCM_DMA_STATUS_TPS BIT(1) +/* Transmit Interrupt */ +#define NPCM_DMA_STATUS_TI BIT(0) + +/* Normal Interrupt Summary */ +#define NPCM_DMA_STATUS_NIS BIT(16) +/* Interrupts enabled by NIE */ +#define NPCM_DMA_STATUS_NIS_BITS (NPCM_DMA_STATUS_TI | \ + NPCM_DMA_STATUS_TU | \ + NPCM_DMA_STATUS_RI | \ + NPCM_DMA_STATUS_ERI) +/* Abnormal Interrupt Summary */ +#define NPCM_DMA_STATUS_AIS BIT(15) +/* Interrupts enabled by AIE */ +#define NPCM_DMA_STATUS_AIS_BITS (NPCM_DMA_STATUS_TPS | \ + NPCM_DMA_STATUS_TJT | \ + NPCM_DMA_STATUS_OVF | \ + NPCM_DMA_STATUS_UNF | \ + NPCM_DMA_STATUS_RU | \ + NPCM_DMA_STATUS_RPS | \ + NPCM_DMA_STATUS_RWT | \ + NPCM_DMA_STATUS_ETI | \ + NPCM_DMA_STATUS_FBI) + +/* Early Receive Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_ERE BIT(14) +/* Fatal Bus Error Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_FBE BIT(13) +/* Early transmit Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_ETE BIT(10) +/* Receive Watchdog Timout Enable */ +#define NPCM_DMA_INTR_ENAB_RWE BIT(9) +/* Receive Process Stopped Enable */ +#define NPCM_DMA_INTR_ENAB_RSE BIT(8) +/* Receive Buffer Unavailable Enable */ +#define NPCM_DMA_INTR_ENAB_RUE BIT(7) +/* Receive Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_RIE BIT(6) +/* Transmit Underflow Enable */ +#define NPCM_DMA_INTR_ENAB_UNE BIT(5) +/* Receive Overflow Enable */ +#define NPCM_DMA_INTR_ENAB_OVE BIT(4) +/* Transmit Jabber Timeout Enable */ +#define NPCM_DMA_INTR_ENAB_TJE BIT(3) +/* Transmit Buffer Unavailable Enable */ +#define NPCM_DMA_INTR_ENAB_TUE BIT(2) +/* Transmit Process Stopped Enable */ +#define NPCM_DMA_INTR_ENAB_TSE BIT(1) +/* Transmit Interrupt Enable */ +#define NPCM_DMA_INTR_ENAB_TIE BIT(0) + +/* Normal Interrupt Summary Enable */ +#define NPCM_DMA_INTR_ENAB_NIE BIT(16) +/* Interrupts enabled by NIE Enable */ +#define NPCM_DMA_INTR_ENAB_NIE_BITS (NPCM_DMA_INTR_ENAB_TIE | \ + NPCM_DMA_INTR_ENAB_TUE | \ + NPCM_DMA_INTR_ENAB_RIE | \ + NPCM_DMA_INTR_ENAB_ERE) +/* Abnormal Interrupt Summary Enable */ +#define NPCM_DMA_INTR_ENAB_AIE BIT(15) +/* Interrupts enabled by AIE Enable */ +#define NPCM_DMA_INTR_ENAB_AIE_BITS (NPCM_DMA_INTR_ENAB_TSE | \ + NPCM_DMA_INTR_ENAB_TJE | \ + NPCM_DMA_INTR_ENAB_OVE | \ + NPCM_DMA_INTR_ENAB_UNE | \ + NPCM_DMA_INTR_ENAB_RUE | \ + NPCM_DMA_INTR_ENAB_RSE | \ + NPCM_DMA_INTR_ENAB_RWE | \ + NPCM_DMA_INTR_ENAB_ETE | \ + NPCM_DMA_INTR_ENAB_FBE) + +/* Flushing Disabled */ +#define NPCM_DMA_CONTROL_FLUSH_MASK BIT(24) +/* Start/stop Transmit */ +#define NPCM_DMA_CONTROL_START_STOP_TX BIT(13) +/* Start/stop Receive */ +#define NPCM_DMA_CONTROL_START_STOP_RX BIT(1) +/* Next receive descriptor start address */ +#define NPCM_DMA_HOST_RX_DESC_MASK(word) ((uint32_t) (word) & ~3u) +/* Next transmit descriptor start address */ +#define NPCM_DMA_HOST_TX_DESC_MASK(word) ((uint32_t) (word) & ~3u) + +/* Receive enable */ +#define NPCM_GMAC_MAC_CONFIG_RX_EN BIT(2) +/* Transmit enable */ +#define NPCM_GMAC_MAC_CONFIG_TX_EN BIT(3) + +/* Frame Receive All */ +#define NPCM_GMAC_FRAME_FILTER_REC_ALL_MASK BIT(31) +/* Frame HPF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_HPF_MASK BIT(10) +/* Frame SAF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_SAF_MASK BIT(9) +/* Frame SAIF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_SAIF_MASK BIT(8) +/* Frame PCF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_PCF_MASK BIT(word) extract32((word), 6, 2) +/* Frame DBF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_DBF_MASK BIT(5) +/* Frame PM Filter*/ +#define NPCM_GMAC_FRAME_FILTER_PM_MASK BIT(4) +/* Frame DAIF Filter*/ +#define NPCM_GMAC_FRAME_FILTER_DAIF_MASK BIT(3) +/* Frame HMC Filter*/ +#define NPCM_GMAC_FRAME_FILTER_HMC_MASK BIT(2) +/* Frame HUC Filter*/ +#define NPCM_GMAC_FRAME_FILTER_HUC_MASK BIT(1) +/* Frame PR Filter*/ +#define NPCM_GMAC_FRAME_FILTER_PR_MASK BIT(0) + +#endif /* NPCM_GMAC_H */