From nobody Fri Oct 3 10:15:30 2025 Received: from smtpbgjp3.qq.com (smtpbgjp3.qq.com [54.92.39.34]) (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 1404F221F1F; Wed, 3 Sep 2025 02:55:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.92.39.34 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756868130; cv=none; b=iUo/NXzdBYgCHaQ4q+oXKekRk3acooMKoiiPI4ioLZSdS+UgQRx30nM4h+X5ZPdVn9AQ6QlqjrVEDYODi7+lSJqL3NSySU0MQ5aXrf8SjJDTDw19NTlyuIBaTIM0LXMNs2b9me/w2a6o+b972NG7QMQYgpel09uWXBNhtL5RF0k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756868130; c=relaxed/simple; bh=5LGuZGxVKskEe5DqUywZbiWg1ADjSLJ7u/dqeIk1baI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=LWrxOz1/6Gfr3M27P7jxz5xt8WVQQDWjNm7bOhs0CRpfPGaFxYHsXcHP8XLUsyg6CIdRx6MJ3gqsEQvTNipdFO+lM0/5No5VaLzpLfuwZK/wWp8+D1vZFi4R8POUpEsTvSL8LHwPRTXowxCrb+OldcTyvzP2jE6AMWBHGGU1xN4= 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=54.92.39.34 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: esmtpsz11t1756868095t28bdc190 X-QQ-Originating-IP: IFGt7nmtSSzO71zw5zmQ/zGFc+QnLjsa6jv+M5GIkcs= Received: from localhost.localdomain ( [203.174.112.180]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 03 Sep 2025 10:54:52 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 6000544590696539859 EX-QQ-RecipientCnt: 28 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, rdunlap@infradead.org, vadim.fedorenko@linux.dev 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 v10 4/5] net: rnpgbe: Add basic mbx_fw support Date: Wed, 3 Sep 2025 10:54:29 +0800 Message-Id: <20250903025430.864836-5-dong100@mucse.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250903025430.864836-1-dong100@mucse.com> References: <20250903025430.864836-1-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: esmtpsz:mucse.com:qybglogicsvrgz:qybglogicsvrgz8a-1 X-QQ-XMAILINFO: NkLA2q2LD229wshJrtN9PYJ1yPuxDSKIY5UlCC7x0FD2JD1tE6KMfoYI 8dAySSDX0jvkQPROMguPaTra7Fr4AbKIZtYI0ZTvSI5Hmo6gaJScU08AFWuHTzGkjBXBAgM As8E1hDz4lLiR8DJAIM/tCe87LUg6xwmtjQkK0rGWvqibD2HLqnInNXrJPRq5MlLG5wGcg6 UoBKHE8SPtg3DQsz9kwf0pothRM1UZ4ZPHWrNkxLmjmTPUMA8px0iUAPKFprcCowH8fDQOz vRHZfsyJ/u4spFgqNQ0qwfDH8qjfg13q2xaES902p7z8ZlTLy+l+ahAuEr2Y++xITsHXOct 5EZ1HYqdAo/CXj1alZefXSxD5V7EftYiKs5IRF76RS3sigypPfBcm5nVH+OMqh8/Y/vYNzv k/796Sv5sglxIjzO0MCq0b6kEjYPlVSaE22+E5kIMgAWD5b1V0DX4MPgeJ2dMVEu39gG41R UUs+15ms9j93aqw9znKNaqwBPNlBSmrCmiNf4u484GkwIvmfLHUOILua9HfruXLeZbJXJf3 I0K3UusnwKD/irqxlvAeQL1tX0TZ5yqE8b0NixpKmkFP2TFqkCY1ReGhyXGZMg2VvhEtMiC qYA2DOh3YZUu92u0HeBvKpju5+w6M3sP72Gp83MI5DWLFaQqJ8Yb4FvBQPhQjucLwVff0Zt Cjk3+wodU+JUQrcaxeUR2a4sXxPVMgZQV0p7FjblJ1K8DwdWLm1agKsmcEKvVRYb8zN/Jwf r3l2t3x2bkCjPVABc3NaNNwoKp65/ZNgrkMc3wT4iaT8KWht3U4HGdqjTXVkCBuxOO1mCo0 qmPOgSNAMLDT7r2I5lGOPUrg2J2eioR/zh/99vtOzXcDfL0NJBloT1bZuWJH2PvuAtK/9bd CfqFkxggnTDGGdc2hA47U57NmHAZ3GhnIhnyJCK5qOsR1hiIpFlUtnxD+XB8IgDYBfozz5A q1802uss/ZlTSa8cjx7dfhHKrfc4eAA8lmHSw2AVSt1CHzj3uRKHQppUudOukN4C4L33icI S+JNJoHxZ5A2cYaaUo X-QQ-XMRINFO: Mp0Kj//9VHAxr69bL5MkOOs= X-QQ-RECHKSPAM: 0 Content-Type: text/plain; charset="utf-8" Initialize basic mbx_fw ops, such as get_capability, reset phy and so on. Signed-off-by: Dong Yibo --- drivers/net/ethernet/mucse/rnpgbe/Makefile | 3 +- drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h | 1 + .../net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c | 250 ++++++++++++++++++ .../net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h | 126 +++++++++ 4 files changed, 379 insertions(+), 1 deletion(-) create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c create mode 100644 drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h diff --git a/drivers/net/ethernet/mucse/rnpgbe/Makefile b/drivers/net/ether= net/mucse/rnpgbe/Makefile index 5fc878ada4b1..de8bcb7772ab 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/Makefile +++ b/drivers/net/ethernet/mucse/rnpgbe/Makefile @@ -7,4 +7,5 @@ obj-$(CONFIG_MGBE) +=3D rnpgbe.o rnpgbe-objs :=3D rnpgbe_main.o\ rnpgbe_chip.o\ - rnpgbe_mbx.o + rnpgbe_mbx.o\ + rnpgbe_mbx_fw.o diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h b/drivers/net/ether= net/mucse/rnpgbe/rnpgbe.h index 7999bb99306b..4d2cca59fb23 100644 --- a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe.h @@ -51,6 +51,7 @@ struct mucse_hw { void __iomem *hw_addr; struct pci_dev *pdev; enum rnpgbe_hw_type hw_type; + u8 pfvfnum; struct mucse_mbx_info mbx; }; =20 diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c b/drivers/ne= t/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c new file mode 100644 index 000000000000..30612c577c99 --- /dev/null +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.c @@ -0,0 +1,250 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2020 - 2025 Mucse Corporation. */ + +#include +#include + +#include "rnpgbe.h" +#include "rnpgbe_hw.h" +#include "rnpgbe_mbx.h" +#include "rnpgbe_mbx_fw.h" + +/** + * mucse_fw_send_cmd_wait - Send cmd req and wait for response + * @hw: pointer to the HW structure + * @req: pointer to the cmd req structure + * @reply: pointer to the fw reply structure + * + * mucse_fw_send_cmd_wait sends req to pf-fw mailbox and wait + * reply from fw. + * + * Return: 0 on success, negative errno on failure + **/ +static int mucse_fw_send_cmd_wait(struct mucse_hw *hw, + struct mbx_fw_cmd_req *req, + struct mbx_fw_cmd_reply *reply) +{ + int len =3D le16_to_cpu(req->datalen); + int retry_cnt =3D 3; + int err; + + mutex_lock(&hw->mbx.lock); + err =3D mucse_write_posted_mbx(hw, (u32 *)req, len); + if (err) + goto out; + do { + err =3D mucse_read_posted_mbx(hw, (u32 *)reply, + sizeof(*reply)); + if (err) + goto out; + /* mucse_write_posted_mbx return 0 means fw has + * received request, wait for the expect opcode + * reply with 'retry_cnt' times. + */ + } while (--retry_cnt >=3D 0 && reply->opcode !=3D req->opcode); +out: + mutex_unlock(&hw->mbx.lock); + if (!err && retry_cnt < 0) + return -ETIMEDOUT; + if (!err && reply->error_code) + return -EIO; + + return err; +} + +/** + * build_get_hw_info_req - build req with GET_HW_INFO opcode + * @req: pointer to the cmd req structure + **/ +static void build_get_hw_info_req(struct mbx_fw_cmd_req *req) +{ + req->flags =3D 0; + req->opcode =3D cpu_to_le16(GET_HW_INFO); + req->datalen =3D cpu_to_le16(MBX_REQ_HDR_LEN); + req->reply_lo =3D 0; + req->reply_hi =3D 0; +} + +/** + * mucse_mbx_get_info - Get hw info from fw + * @hw: pointer to the HW structure + * + * mucse_mbx_get_info tries to get hw info from hw. + * + * Return: 0 on success, negative errno on failure + **/ +static int mucse_mbx_get_info(struct mucse_hw *hw) +{ + struct mbx_fw_cmd_reply reply =3D {}; + struct mbx_fw_cmd_req req =3D {}; + struct hw_info info =3D {}; + int err; + + build_get_hw_info_req(&req); + err =3D mucse_fw_send_cmd_wait(hw, &req, &reply); + if (!err) { + memcpy(&info, &reply.hw_info, sizeof(struct hw_info)); + hw->pfvfnum =3D le16_to_cpu(info.pfnum) & GENMASK_U16(7, 0); + } + + return err; +} + +/** + * mucse_mbx_sync_fw - Try to sync with fw + * @hw: pointer to the HW structure + * + * mucse_mbx_sync_fw tries to sync with fw. It is only called in + * probe. Nothing (register network) todo if failed. + * Try more times to do sync. + * + * Return: 0 on success, negative errno on failure + **/ +int mucse_mbx_sync_fw(struct mucse_hw *hw) +{ + int try_cnt =3D 3; + int err; + + do { + err =3D mucse_mbx_get_info(hw); + if (err =3D=3D -ETIMEDOUT) + continue; + break; + } while (try_cnt--); + + return err; +} + +/** + * build_powerup - build req with powerup opcode + * @req: pointer to the cmd req structure + * @is_powerup: true for powerup, false for powerdown + **/ +static void build_powerup(struct mbx_fw_cmd_req *req, + bool is_powerup) +{ + req->flags =3D 0; + req->opcode =3D cpu_to_le16(POWER_UP); + req->datalen =3D cpu_to_le16(sizeof(req->powerup) + + MBX_REQ_HDR_LEN); + req->reply_lo =3D 0; + req->reply_hi =3D 0; +#define FIXED_VERSION 0xFFFFFFFF + req->powerup.version =3D cpu_to_le32(FIXED_VERSION); + if (is_powerup) + req->powerup.status =3D cpu_to_le32(1); + else + req->powerup.status =3D cpu_to_le32(0); +} + +/** + * mucse_mbx_powerup - Echo fw to powerup + * @hw: pointer to the HW structure + * @is_powerup: true for powerup, false for powerdown + * + * mucse_mbx_powerup echo fw to change working frequency + * to normal after received true, and reduce working frequency + * if false. + * + * Return: 0 on success, negative errno on failure + **/ +int mucse_mbx_powerup(struct mucse_hw *hw, bool is_powerup) +{ + struct mbx_fw_cmd_req req =3D {}; + int len; + int err; + + build_powerup(&req, is_powerup); + len =3D le16_to_cpu(req.datalen); + mutex_lock(&hw->mbx.lock); + + if (is_powerup) { + err =3D mucse_write_posted_mbx(hw, (u32 *)&req, + len); + } else { + err =3D mucse_write_mbx_pf(hw, (u32 *)&req, + len); + } + + mutex_unlock(&hw->mbx.lock); + return err; +} + +/** + * build_reset_hw_req - build req with RESET_HW opcode + * @req: pointer to the cmd req structure + **/ +static void build_reset_hw_req(struct mbx_fw_cmd_req *req) +{ + req->flags =3D 0; + req->opcode =3D cpu_to_le16(RESET_HW); + req->datalen =3D cpu_to_le16(MBX_REQ_HDR_LEN); + req->reply_lo =3D 0; + req->reply_hi =3D 0; +} + +/** + * mucse_mbx_reset_hw - Posts a mbx req to reset hw + * @hw: pointer to the HW structure + * + * mucse_mbx_reset_hw posts a mbx req to firmware to reset hw. + * + * Return: 0 on success, negative errno on failure + **/ +int mucse_mbx_reset_hw(struct mucse_hw *hw) +{ + struct mbx_fw_cmd_reply reply =3D {}; + struct mbx_fw_cmd_req req =3D {}; + + build_reset_hw_req(&req); + return mucse_fw_send_cmd_wait(hw, &req, &reply); +} + +/** + * build_get_macaddress_req - build req with get_mac opcode + * @req: pointer to the cmd req structure + * @port_mask: port valid for this cmd + * @pfvfnum: pfvfnum for this cmd + **/ +static void build_get_macaddress_req(struct mbx_fw_cmd_req *req, + int port_mask, int pfvfnum) +{ + req->flags =3D 0; + req->opcode =3D cpu_to_le16(GET_MAC_ADDRESS); + req->datalen =3D cpu_to_le16(sizeof(req->get_mac_addr) + + MBX_REQ_HDR_LEN); + req->reply_lo =3D 0; + req->reply_hi =3D 0; + req->get_mac_addr.port_mask =3D cpu_to_le32(port_mask); + req->get_mac_addr.pfvf_num =3D cpu_to_le32(pfvfnum); +} + +/** + * mucse_mbx_get_macaddr - Posts a mbx req to request macaddr + * @hw: pointer to the HW structure + * @pfvfnum: index of pf/vf num + * @mac_addr: pointer to store mac_addr + * @port: port index + * + * mucse_mbx_get_macaddr posts a mbx req to firmware to get mac_addr. + * + * Return: 0 on success, negative errno on failure + **/ +int mucse_mbx_get_macaddr(struct mucse_hw *hw, int pfvfnum, + u8 *mac_addr, + int port) +{ + struct mbx_fw_cmd_reply reply =3D {}; + struct mbx_fw_cmd_req req =3D {}; + int err; + + build_get_macaddress_req(&req, BIT(port), pfvfnum); + err =3D mucse_fw_send_cmd_wait(hw, &req, &reply); + if (err) + return err; + if (le32_to_cpu(reply.mac_addr.ports) & BIT(port)) + memcpy(mac_addr, reply.mac_addr.addrs[port].mac, ETH_ALEN); + else + return -ENODATA; + return 0; +} diff --git a/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h b/drivers/ne= t/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h new file mode 100644 index 000000000000..d2dcad82f775 --- /dev/null +++ b/drivers/net/ethernet/mucse/rnpgbe/rnpgbe_mbx_fw.h @@ -0,0 +1,126 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2020 - 2025 Mucse Corporation. */ + +#ifndef _RNPGBE_MBX_FW_H +#define _RNPGBE_MBX_FW_H + +#include +#include +#include + +#include "rnpgbe.h" + +#define MBX_REQ_HDR_LEN 24 + +enum MUCSE_FW_CMD { + GET_HW_INFO =3D 0x0601, + GET_MAC_ADDRESS =3D 0x0602, + RESET_HW =3D 0x0603, + POWER_UP =3D 0x0803, +}; + +struct hw_info { + u8 link_stat; + u8 port_mask; + __le32 speed; + __le16 phy_type; + __le16 nic_mode; + __le16 pfnum; + __le32 fw_version; + __le32 axi_mhz; + union { + u8 port_id[4]; + __le32 port_ids; + }; + __le32 bd_uid; + __le32 phy_id; + __le32 wol_status; + union { + __le32 ext_info; + struct { + u32 valid : 1; + u32 wol_en : 1; + u32 pci_preset_runtime_en : 1; + u32 smbus_en : 1; + u32 ncsi_en : 1; + u32 rpu_en : 1; + u32 v2 : 1; + u32 pxe_en : 1; + u32 mctp_en : 1; + u32 yt8614 : 1; + u32 pci_ext_reset : 1; + u32 rpu_availble : 1; + u32 fw_lldp_ability : 1; + u32 lldp_enabled : 1; + u32 only_1g : 1; + u32 force_down_en: 1; + } e_host; + }; +} __packed; + +/* FW stores extended information in 'ext_info' as a 32-bit + * little-endian value. To make these flags easily accessible in the + * kernel (via named 'bitfields' instead of raw bitmask operations), + * we use the union's 'e_host' struct, which provides named bits + * (e.g., 'wol_en', 'smbus_en') + */ +static inline void info_update_host_endian(struct hw_info *info) +{ + u32 host_val =3D le32_to_cpu(info->ext_info); + + info->e_host =3D *(typeof(info->e_host) *)&host_val; +} + +#define FLAGS_DD BIT(0) +#define FLAGS_ERR BIT(2) + +struct mbx_fw_cmd_req { + __le16 flags; + __le16 opcode; + __le16 datalen; + __le16 ret_value; + __le32 cookie_lo; + __le32 cookie_hi; + __le32 reply_lo; + __le32 reply_hi; + union { + u8 data[32]; + struct { + __le32 version; + __le32 status; + } powerup; + struct { + __le32 port_mask; + __le32 pfvf_num; + } get_mac_addr; + }; +} __packed; + +struct mbx_fw_cmd_reply { + __le16 flags; + __le16 opcode; + __le16 error_code; + __le16 datalen; + __le32 cookie_lo; + __le32 cookie_hi; + union { + u8 data[40]; + struct mac_addr { + __le32 ports; + struct _addr { + /* for macaddr:01:02:03:04:05:06 + * mac-hi=3D0x01020304 mac-lo=3D0x05060000 + */ + u8 mac[8]; + } addrs[4]; + } mac_addr; + struct hw_info hw_info; + }; +} __packed; + +int mucse_mbx_sync_fw(struct mucse_hw *hw); +int mucse_mbx_powerup(struct mucse_hw *hw, bool is_powerup); +int mucse_mbx_reset_hw(struct mucse_hw *hw); +int mucse_mbx_get_macaddr(struct mucse_hw *hw, int pfvfnum, + u8 *mac_addr, int port); +#endif /* _RNPGBE_MBX_FW_H */ --=20 2.25.1