From nobody Sat Feb 7 06:39:22 2026 Received: from smtpbgsg1.qq.com (smtpbgsg1.qq.com [54.254.200.92]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2616B26F2A0; Mon, 18 Aug 2025 11:30:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.254.200.92 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755516625; cv=none; b=XnD4fzpXn1B/6D7L/SLEuZDP7lCuX8JBq7jQYg9n9gk1KRjWqWSzlsBl7StwAaoz7ShZVWZFRIK/TRVqBeYh5jBfuf1yzP03uCHke6yNMRavnt1D/PUtq/NjHlIyIdBZQj+0N9EQ0au+t/o7XhS2bCntVlbj8rWBluiCcGHXj2s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755516625; c=relaxed/simple; bh=s5ddgFsGGGk1pcIW/Fr3GYZhq6M5E684EPn3M+VHnPw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=WWJbrgfwC6KZJ/rgyGrdPySVC1CWiWDh35nXAf9qzXsKe8aD45+VNOKLEuSnC3IsfrkDHN0HpIe5iAYFXpSP5MOKD6kgDsdil+qWz50giKXkYTqTds7JlOlFSHmkjyPwmKZpoOJN2U+hjkQk34UqHhqowpSBRKQgAvj022B9uSg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mucse.com; spf=pass smtp.mailfrom=mucse.com; arc=none smtp.client-ip=54.254.200.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mucse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mucse.com X-QQ-mid: zesmtpsz2t1755516572t4c883a33 X-QQ-Originating-IP: Z7rUYEvrlMkARr6Zw4Y/nJVtfly9OFveXrOrlfgQY6Y= Received: from localhost.localdomain ( [203.174.112.180]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 18 Aug 2025 19:29:30 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 382944158943631087 EX-QQ-RecipientCnt: 23 From: Dong Yibo To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, corbet@lwn.net, gur.stavi@huawei.com, maddy@linux.ibm.com, mpe@ellerman.id.au, danishanwar@ti.com, lee@trager.us, gongfan1@huawei.com, lorenzo@kernel.org, geert+renesas@glider.be, Parthiban.Veerasooran@microchip.com, lukas.bulwahn@redhat.com, alexanderduyck@fb.com, richardcochran@gmail.com Cc: netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, dong100@mucse.com Subject: [PATCH v5 5/5] net: rnpgbe: Add register_netdev Date: Mon, 18 Aug 2025 19:28:56 +0800 Message-Id: <20250818112856.1446278-6-dong100@mucse.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250818112856.1446278-1-dong100@mucse.com> References: <20250818112856.1446278-1-dong100@mucse.com> 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 X-QQ-SENDSIZE: 520 Feedback-ID: zesmtpsz:mucse.com:qybglogicsvrgz:qybglogicsvrgz8a-1 X-QQ-XMAILINFO: ODdlE4ipA1aGooQCdXCVbsyoPt8Nd3ofuLSR/uI7GOrmxFx/rz/3qOdW YJpWM0WmyHLnK99WiFJKpDqiG+1ia08SfrUExvWnlpMBtif7Hbmb8/unr53lqtGr5lJAn9Q YH4ye/pXZmiTGZvlDopDRF08oUsi7iX3C2DJye5H2fSsp3HgQTlgymhj/SgcjnrhTFYDfPn CAJsDv4jP7dGGV4Fu/EwGsLSCfQt5YiCvFZd1cR4SEwOAOSF4T/dleKBB3T2KOqeTwPwt2b FknUu+O8WmME6HqReGBWhneQeBqvU/UpgTrtevN/fBajI1eG8JsJacXmUPQnbY+mGKBN26l 2TZ1cT9vSuHaVOBsVWBquRzaw+/xT4alU7q4Twuo5ikgni/ZHjjcTRKBxBVhrWAppNHI1y7 F946tqWAI81vAUIXwcrg3vTU2vKnF/pWVaVZMfi+6QPE6+TRjhe8G/2dxBIPzeSA9jWY6NB +pwyb21WE+PYLA34s9bNUakSX+yBVf3xo020t9oNSXEKV0xTIUq6/pXHJVJc/HIIQHLcOGO 8Vsx9pl9K2kUTeNs1xdEUSdzd0Vk11Zr+XmerHRf/Xy3eeVfeCukM2TRegAlCiAtTwrkhrh sEXLaiSHiDtTZSaXbSuM0PXmmIlm8YYQeIcETDAd900n0UUgEBkqG4eQxGvCKPYW/WYGNyJ sf2yacdOI7osqsT1giGZoKSAAyXkxFRODBiLXBOwAa6bXFxxXgqo2YdLpxGN1gE1CWY/jAJ 0QRay1d5/7M/8iabENx45j6sIL+YJeSaO7m/QwP/pEm8VFjya4CZNvCVtZ6hoVbt0hdIrm0 JRR9GjjwkURh9o2xHWlzejN2CR28W2X6Gh0mgDtM/a6BfuRaCIb3h9xGtUkJietWcGRAeKs M1qRLyuLN55dgUJX5zRo35JiRlhxsQAZkxLu0GYCHiiwxRpobrUn0oAquHBZ9kjl8zzWB2v Kp1/DKK9uL2sLj5icQbnYWph+k420CX8dpbxZYi/LXAS1g6hHpnY6DLV6AU2+ugKFP4lxvC N2tLhgnX9NT/OlIMbZU3MaGnf8V9iIU5RORMzvu062aGuzpKa1laohhGRrRT1T+wb+85hl5 KDh3ydpRVco X-QQ-XMRINFO: NI4Ajvh11aEj8Xl/2s1/T8w= X-QQ-RECHKSPAM: 0 Content-Type: text/plain; charset="utf-8" Initialize get mac from hw, register the netdev. Signed-off-by: Dong Yibo --- drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h | 18 +++++ .../net/ethernet/mucse/rnpgbe/rnpgbe_chip.c | 72 ++++++++++++++++++ drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h | 1 + .../net/ethernet/mucse/rnpgbe/rnpgbe_main.c | 75 +++++++++++++++++++ 4 files changed, 166 insertions(+) diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h b/drivers/net/ether= net/mucse/rnpgbe/rnpgbe.h index 6a77fcfa0b09..1630885366cf 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h @@ -6,6 +6,7 @@ =20 #include #include +#include =20 extern const struct rnpgbe_info rnpgbe_n500_info; extern const struct rnpgbe_info rnpgbe_n210_info; @@ -63,6 +64,17 @@ struct mucse_mbx_info { u32 fw2pf_mbox_vec; }; =20 +struct mucse_hw; + +struct mucse_hw_operations { + int (*reset_hw)(struct mucse_hw *hw); + void (*driver_status)(struct mucse_hw *hw, bool enable, int mode); +}; + +enum { + mucse_driver_insmod, +}; + struct mucse_hw { void __iomem *hw_addr; void __iomem *ring_msix_base; @@ -71,11 +83,15 @@ struct mucse_hw { u32 bd_uid; enum rnpgbe_hw_type hw_type; u8 pfvfnum; + const struct mucse_hw_operations *ops; struct mucse_dma_info dma; struct mucse_eth_info eth; struct mucse_mac_info mac; struct mucse_mbx_info mbx; + u32 flags; u32 usecstocount; + int port; + u8 perm_addr[ETH_ALEN]; }; =20 struct mucse { @@ -96,4 +112,6 @@ struct rnpgbe_info { #define PCI_DEVICE_ID_N500_DUAL_PORT 0x8318 #define PCI_DEVICE_ID_N210 0x8208 #define PCI_DEVICE_ID_N210L 0x820a + +#define rnpgbe_dma_wr32(dma, reg, val) writel((val), (dma)->dma_base_addr = + (reg)) #endif /* _RNPGBE_H */ diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c b/drivers/net/= ethernet/mucse/rnpgbe/rnpgbe_chip.c index 452541c9e1e9..d3da4ad760a4 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_chip.c @@ -1,11 +1,81 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 2020 - 2025 Mucse Corporation. */ =20 +#include #include +#include =20 #include "rnpgbe.h" #include "rnpgbe_hw.h" #include "rnpgbe_mbx.h" +#include "rnpgbe_mbx_fw.h" + +/** + * rnpgbe_get_permanent_mac - Get permanent mac + * @hw: hw information structure + * @mac_addr: pointer to store mac + * + * rnpgbe_get_permanent_mac tries to get mac from hw. + * It use eth_random_addr if failed. + * + * @return: 0 or -EINVAL + **/ +static int rnpgbe_get_permanent_mac(struct mucse_hw *hw, + u8 *mac_addr) +{ + struct device *dev =3D &hw->pdev->dev; + + if (mucse_fw_get_macaddr(hw, hw->pfvfnum, mac_addr, hw->port) || + !is_valid_ether_addr(mac_addr)) { + dev_err(dev, "Failed to get valid MAC from FW\n"); + return -EINVAL; + } + + return 0; +} + +/** + * rnpgbe_reset_hw_ops - Do a hardware reset + * @hw: hw information structure + * + * rnpgbe_reset_hw_ops calls fw to do a hardware + * reset, and cleans some regs to default. + * + * @return: 0 on success, negative on failure + **/ +static int rnpgbe_reset_hw_ops(struct mucse_hw *hw) +{ + struct mucse_dma_info *dma =3D &hw->dma; + int err; + + rnpgbe_dma_wr32(dma, RNPGBE_DMA_AXI_EN, 0); + err =3D mucse_mbx_fw_reset_phy(hw); + if (err) + return err; + return rnpgbe_get_permanent_mac(hw, hw->perm_addr); +} + +/** + * rnpgbe_driver_status_hw_ops - Echo driver status to hw + * @hw: hw information structure + * @enable: true or false status + * @mode: status mode + **/ +static void rnpgbe_driver_status_hw_ops(struct mucse_hw *hw, + bool enable, + int mode) +{ + switch (mode) { + case mucse_driver_insmod: + mucse_mbx_ifinsmod(hw, enable); + break; + } +} + +static const struct mucse_hw_operations rnpgbe_hw_ops =3D { + .reset_hw =3D &rnpgbe_reset_hw_ops, + .driver_status =3D &rnpgbe_driver_status_hw_ops, +}; =20 /** * rnpgbe_init_common - Setup common attribute @@ -27,6 +97,8 @@ static void rnpgbe_init_common(struct mucse_hw *hw) =20 mbx->pf2fw_mbox_ctrl =3D GBE_PF2FW_MBX_MASK_OFFSET; mbx->fw_pf_mbox_mask =3D GBE_FWPF_MBX_MASK; + + hw->ops =3D &rnpgbe_hw_ops; } =20 /** diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h b/drivers/net/et= hernet/mucse/rnpgbe/rnpgbe_hw.h index cb3eb53b804d..42acc96e5b26 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h @@ -20,6 +20,7 @@ #define N210_DEFAULT_USECSTOCOUNT 62 /**************** DMA Registers ****************************/ #define RNPGBE_DMA_DUMY 0x000c +#define RNPGBE_DMA_AXI_EN 0x0010 /**************** CHIP Resource ****************************/ #define RNPGBE_MAX_QUEUES 8 #endif /* _RNPGBE_HW_H */ diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_main.c b/drivers/net/= ethernet/mucse/rnpgbe/rnpgbe_main.c index 89d8f78af146..4d75f73b012b 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_main.c +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_main.c @@ -8,6 +8,8 @@ #include =20 #include "rnpgbe.h" +#include "rnpgbe_mbx.h" +#include "rnpgbe_mbx_fw.h" =20 static const char rnpgbe_driver_name[] =3D "rnpgbe"; static const struct rnpgbe_info *rnpgbe_info_tbl[] =3D { @@ -34,6 +36,55 @@ static struct pci_device_id rnpgbe_pci_tbl[] =3D { {0, }, }; =20 +/** + * rnpgbe_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). + * + * @return: 0 on success, negative value on failure + **/ +static int rnpgbe_open(struct net_device *netdev) +{ + return 0; +} + +/** + * rnpgbe_close - Disables a network interface + * @netdev: network interface device structure + * + * The close entry point is called when an interface is de-activated + * by the OS. + * + * @return: 0, this is not allowed to fail + **/ +static int rnpgbe_close(struct net_device *netdev) +{ + return 0; +} + +/** + * rnpgbe_xmit_frame - Send a skb to driver + * @skb: skb structure to be sent + * @netdev: network interface device structure + * + * @return: NETDEV_TX_OK or NETDEV_TX_BUSY + **/ +static netdev_tx_t rnpgbe_xmit_frame(struct sk_buff *skb, + struct net_device *netdev) +{ + dev_kfree_skb_any(skb); + netdev->stats.tx_dropped++; + return NETDEV_TX_OK; +} + +static const struct net_device_ops rnpgbe_netdev_ops =3D { + .ndo_open =3D rnpgbe_open, + .ndo_stop =3D rnpgbe_close, + .ndo_start_xmit =3D rnpgbe_xmit_frame, +}; + /** * rnpgbe_add_adapter - Add netdev for this pci_dev * @pdev: PCI device information structure @@ -82,6 +133,27 @@ static int rnpgbe_add_adapter(struct pci_dev *pdev, hw->hw_addr =3D hw_addr; hw->dma.dma_version =3D dma_version; info->init(hw); + mucse_init_mbx_params_pf(hw); + /* echo fw driver insmod to control hw */ + hw->ops->driver_status(hw, true, mucse_driver_insmod); + err =3D mucse_mbx_get_capability(hw); + if (err) { + dev_err(&pdev->dev, + "mucse_mbx_get_capability failed! %d\n", + err); + goto err_free_net; + } + netdev->netdev_ops =3D &rnpgbe_netdev_ops; + netdev->watchdog_timeo =3D 5 * HZ; + err =3D hw->ops->reset_hw(hw); + if (err) { + dev_err(&pdev->dev, "Hw reset failed %d\n", err); + goto err_free_net; + } + eth_hw_addr_set(netdev, hw->perm_addr); + err =3D register_netdev(netdev); + if (err) + goto err_free_net; return 0; =20 err_free_net: @@ -145,12 +217,15 @@ static int rnpgbe_probe(struct pci_dev *pdev, const s= truct pci_device_id *id) static void rnpgbe_rm_adapter(struct pci_dev *pdev) { struct mucse *mucse =3D pci_get_drvdata(pdev); + struct mucse_hw *hw =3D &mucse->hw; struct net_device *netdev; =20 if (!mucse) return; netdev =3D mucse->netdev; + unregister_netdev(netdev); mucse->netdev =3D NULL; + hw->ops->driver_status(hw, false, mucse_driver_insmod); free_netdev(netdev); } =20 --=20 2.25.1