From nobody Mon Feb 9 22:02:54 2026 Received: from smtpbgeu1.qq.com (smtpbgeu1.qq.com [52.59.177.22]) (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 A33A12E2F05 for ; Wed, 20 Aug 2025 09:23:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=52.59.177.22 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755681825; cv=none; b=PwMZ4C62dy8yDET8SH8aKKkwvhVdHVf4Ajjo4CIagg1E31baV62JnXyW43NwLyhaROJ35/4O1Hb2xUClYUdARxJcXu72xXHSO8z3q6KHA4Dv/U4xBdBSY2isZwuAhWd2X7RadjdkysBKArpzR8KtCKP9oOVTzQN2fq/CGuC5G5Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755681825; c=relaxed/simple; bh=NOXAsb2uDJbrW0h/L7CJxaJ5qh9EH/k+xlw8aaiLPz8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=hU9ux7eL6MIRGO1Vnp0T6N7FLkK8DDIr3GeTXSpw5o7pKoA6/AeapMaQSkh6D3+moAWFDlsehaZSX/LI/chcCg7n5lJyI0HWfh0MB2Rb9V5EWl9Pp3c503Qx/DfW7WWziY1WNOTuzdUl6LKSky8PnzFT6g855nRnphv9UZQ1OEg= 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=52.59.177.22 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: esmtpgz10t1755681751t3ce627bb X-QQ-Originating-IP: UYkFTIgqfiKP3Ypk5VNQo7gBb1vKqJr48s08Z55eoOE= Received: from localhost.localdomain ( [203.174.112.180]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 20 Aug 2025 17:22:28 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 2171414279782871235 EX-QQ-RecipientCnt: 26 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, kees@kernel.org, gustavoars@kernel.org Cc: netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, dong100@mucse.com Subject: [PATCH net-next v6 5/5] net: rnpgbe: Add register_netdev Date: Wed, 20 Aug 2025 17:21:54 +0800 Message-Id: <20250820092154.1643120-6-dong100@mucse.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250820092154.1643120-1-dong100@mucse.com> References: <20250820092154.1643120-1-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: esmtpgz:mucse.com:qybglogicsvrgz:qybglogicsvrgz8a-1 X-QQ-XMAILINFO: Mo3PYuu8Roc7xt+eev5/RiYeRcM+efs97vImoQOTqPD4iGkW41hIMpGR jHTSYE/kKPL41rRlL/6IVzWNhfZxxlTa64n8EDOKjOYugGHtwSwZ+NXWACEl+nWKlUSaEjY SvsNc61qu3CxInhEspaLjyDXV4XxGCo9q9QAgfyTRtALd6wzeTeFAeoKvUSOuNzmiWElquG DBhILhxRAUZ0zskQBVplntD9wyZkD2ymo/DeTSPUNwui9CWUGwTTpJZMObYCDMPPBUEvZPV rhotd5Lzh6O2aME8McxH85VZKnXXb67vYxDhpLleNx0YEnD0aXqMDzb9oAA4dfLk8T0Hz4R h0WctvgnCzNUAjlTLd6O8KKfOj3ZMqabR9BgZRDY4xgvljCV1CKLYQt2Pvo7vVBUmMcjwrC 4Itkv7/rc8ji7P2ohhwcEp64KVaM6ul/MxhAiZOA30wOoNX650faYXqCSQo0gqEm4orhIp+ TEhozAlplDI1N7fO8LYvOjQPGtVYAZMTjvvLFRfMavQFhCGsHsezctIzLd2j/i0l0iAJtol 8M3JAZovggeGsgbNZKCxpkBnEn9WEVRdTJ6+aiHuvaN+K7S8Iq+e8xtJczLtLuGZsdBfy9L 5kgvnCja4X1mE8OBZyBtTHQ2FT2zzE+OAaeNXnTNRZTMLauDSRygz9Inv2PX09iWk0Ond87 rTR84HhLcRaiHwdeW7cZRfGecEZECJjxCcqbkpXk/UoySwdxKm5vsMMy4ppD9SjLbd+9/iT C3qy2uDWSTp0BGnP32YHGVjGp6Z9OpKBKhLSndHeA4lOjZ9zw7vdxq/HUEe/T4YUziqVpSw c34YbuLfbQHFjyqUiqBwP29ftU8NPKaBWHqndWiy4mTN4QaiQs3Dp2pCV+Eps+ykPL0usW3 Qv91JECNZaTZ2LvRhkoWXP63UNbWOsRj7GwQTjoMnaN09XUi2sP4wvHdWyoBakHRXSHD8IR cP8Ywa3ANGj2XyQ3117hMRMthmuW4xvWiTrXlFKRVc79TZaQ2M36l45mbWBv+JBut1Qjnbq zvSKRTEKL5M1oxMLp0pIjBHIWc/tQRbx39ZwXDizZjz+yqNH6x6EjOO61KFadH+iSQjzhVl eyemnKExSdjqhhzN+woNjWcbkr/MyS7Sw== X-QQ-XMRINFO: OD9hHCdaPRBwq3WW+NvGbIU= 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 | 23 ++++++ .../net/ethernet/mucse/rnpgbe/rnpgbe_chip.c | 76 +++++++++++++++++++ drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h | 2 + .../net/ethernet/mucse/rnpgbe/rnpgbe_main.c | 75 ++++++++++++++++++ 4 files changed, 176 insertions(+) diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h b/drivers/net/ether= net/mucse/rnpgbe/rnpgbe.h index 104c807febd4..eec44b7a5250 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; @@ -24,6 +25,10 @@ enum rnpgbe_hw_type { rnpgbe_hw_unknown }; =20 +struct mucse_dma_info { + void __iomem *dma_base_addr; +}; + struct mucse_mbx_stats { u32 msgs_tx; u32 msgs_rx; @@ -48,12 +53,27 @@ 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; struct pci_dev *pdev; enum rnpgbe_hw_type hw_type; u8 pfvfnum; + const struct mucse_hw_operations *ops; + struct mucse_dma_info dma; struct mucse_mbx_info mbx; + int port; + u8 perm_addr[ETH_ALEN]; }; =20 struct mucse { @@ -74,4 +94,7 @@ 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 7791af04c317..e6c0b6473e67 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 @@ -13,10 +83,16 @@ **/ static void rnpgbe_init_common(struct mucse_hw *hw) { + struct mucse_dma_info *dma =3D &hw->dma; struct mucse_mbx_info *mbx =3D &hw->mbx; =20 + dma->dma_base_addr =3D hw->hw_addr; + 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; + hw->port =3D 0; } =20 /** diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h b/drivers/net/et= hernet/mucse/rnpgbe/rnpgbe_hw.h index 746dca78f1df..0ab2c328c9e9 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_hw.h @@ -11,6 +11,8 @@ #define GBE_FWPF_MBX_MASK 0x5700 #define N210_FW2PF_MBX_VEC_OFFSET 0x29400 #define N210_FWPF_SHM_BASE_OFFSET 0x2d900 +/**************** DMA Registers ****************************/ +#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 9ce81e38e278..91669b71fecb 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 @@ -79,6 +130,27 @@ static int rnpgbe_add_adapter(struct pci_dev *pdev, =20 hw->hw_addr =3D hw_addr; 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: @@ -142,12 +214,15 @@ 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