Resguardo inicial

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/Kconfig

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Huawei driver configuration
+#
+
+config HINIC3
+	tristate "Huawei 3rd generation network adapters (HINIC3) support"
+	# Fields of HW and management structures are little endian and are
+	# currently not converted
+	depends on !CPU_BIG_ENDIAN
+	depends on X86 || ARM64 || COMPILE_TEST
+	depends on PCI_MSI && 64BIT
+	select AUXILIARY_BUS
+	select DIMLIB
+	select PAGE_POOL
+	help
+	  This driver supports HiNIC 3rd gen Network Adapter (HINIC3).
+	  The driver is supported on X86_64 and ARM64 little endian.
+
+	  To compile this driver as a module, choose M here.
+	  The module will be called hinic3.

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/Makefile

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+obj-$(CONFIG_HINIC3) += hinic3.o
+
+hinic3-objs := hinic3_cmdq.o \
+	       hinic3_common.o \
+	       hinic3_eqs.o \
+	       hinic3_ethtool.o \
+	       hinic3_filter.o \
+	       hinic3_hw_cfg.o \
+	       hinic3_hw_comm.o \
+	       hinic3_hwdev.o \
+	       hinic3_hwif.o \
+	       hinic3_irq.o \
+	       hinic3_lld.o \
+	       hinic3_main.o \
+	       hinic3_mbox.o \
+	       hinic3_mgmt.o \
+	       hinic3_netdev_ops.o \
+	       hinic3_nic_cfg.o \
+	       hinic3_nic_io.o \
+	       hinic3_queue_common.o \
+	       hinic3_rss.o \
+	       hinic3_rx.o \
+	       hinic3_tx.o \
+	       hinic3_wq.o

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_cmdq.h

@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_CMDQ_H_
+#define _HINIC3_CMDQ_H_
+
+#include <linux/dmapool.h>
+
+#include "hinic3_hw_intf.h"
+#include "hinic3_wq.h"
+
+#define CMDQ_DEPTH  4096
+
+struct cmdq_db {
+	__le32 db_head;
+	__le32 db_info;
+};
+
+/* hw defined cmdq wqe header */
+struct cmdq_header {
+	__le32 header_info;
+	__le32 saved_data;
+};
+
+struct cmdq_lcmd_bufdesc {
+	struct hinic3_sge sge;
+	__le64            rsvd2;
+	__le64            rsvd3;
+};
+
+struct cmdq_status {
+	__le32 status_info;
+};
+
+struct cmdq_ctrl {
+	__le32 ctrl_info;
+};
+
+struct cmdq_direct_resp {
+	__le64 val;
+	__le64 rsvd;
+};
+
+struct cmdq_completion {
+	union {
+		struct hinic3_sge       sge;
+		struct cmdq_direct_resp direct;
+	} resp;
+};
+
+struct cmdq_wqe_scmd {
+	struct cmdq_header     header;
+	__le64                 rsvd3;
+	struct cmdq_status     status;
+	struct cmdq_ctrl       ctrl;
+	struct cmdq_completion completion;
+	__le32                 rsvd10[6];
+};
+
+struct cmdq_wqe_lcmd {
+	struct cmdq_header       header;
+	struct cmdq_status       status;
+	struct cmdq_ctrl         ctrl;
+	struct cmdq_completion   completion;
+	struct cmdq_lcmd_bufdesc buf_desc;
+};
+
+struct cmdq_wqe {
+	union {
+		struct cmdq_wqe_scmd wqe_scmd;
+		struct cmdq_wqe_lcmd wqe_lcmd;
+	};
+};
+
+static_assert(sizeof(struct cmdq_wqe) == 64);
+
+enum hinic3_cmdq_type {
+	HINIC3_CMDQ_SYNC      = 0,
+	HINIC3_MAX_CMDQ_TYPES = 4
+};
+
+enum hinic3_cmdq_status {
+	HINIC3_CMDQ_ENABLE = BIT(0),
+};
+
+enum hinic3_cmdq_cmd_type {
+	HINIC3_CMD_TYPE_NONE,
+	HINIC3_CMD_TYPE_SET_ARM,
+	HINIC3_CMD_TYPE_DIRECT_RESP,
+	HINIC3_CMD_TYPE_SGE_RESP,
+	HINIC3_CMD_TYPE_FAKE_TIMEOUT,
+	HINIC3_CMD_TYPE_TIMEOUT,
+	HINIC3_CMD_TYPE_FORCE_STOP,
+};
+
+struct hinic3_cmd_buf {
+	void       *buf;
+	dma_addr_t dma_addr;
+	__le16     size;
+	refcount_t ref_cnt;
+};
+
+struct hinic3_cmd_buf_pair {
+	struct hinic3_cmd_buf *in;
+	struct hinic3_cmd_buf *out;
+};
+
+struct hinic3_cmdq_cmd_info {
+	enum hinic3_cmdq_cmd_type cmd_type;
+	struct completion         *done;
+	int                       *errcode;
+	/* completion code */
+	int                       *cmpt_code;
+	__le64                    *direct_resp;
+	u64                       cmdq_msg_id;
+	struct hinic3_cmd_buf     *buf_in;
+	struct hinic3_cmd_buf     *buf_out;
+};
+
+struct hinic3_cmdq {
+	struct hinic3_wq            wq;
+	enum hinic3_cmdq_type       cmdq_type;
+	u8                          wrapped;
+	/* synchronize command submission with completions via event queue */
+	spinlock_t                  cmdq_lock;
+	struct hinic3_cmdq_cmd_info *cmd_infos;
+	struct hinic3_hwdev         *hwdev;
+};
+
+struct hinic3_cmdqs {
+	struct hinic3_hwdev *hwdev;
+	struct hinic3_cmdq  cmdq[HINIC3_MAX_CMDQ_TYPES];
+	struct dma_pool     *cmd_buf_pool;
+	/* doorbell area */
+	u8 __iomem          *cmdqs_db_base;
+
+	/* When command queue uses multiple memory pages (1-level CLA), this
+	 * block will hold aggregated indirection table for all command queues
+	 * of cmdqs. Not used for small cmdq (0-level CLA).
+	 */
+	dma_addr_t          wq_block_paddr;
+	void                *wq_block_vaddr;
+
+	u32                 status;
+	u32                 disable_flag;
+	u8                  cmdq_num;
+};
+
+int hinic3_cmdqs_init(struct hinic3_hwdev *hwdev);
+void hinic3_cmdqs_free(struct hinic3_hwdev *hwdev);
+
+struct hinic3_cmd_buf *hinic3_alloc_cmd_buf(struct hinic3_hwdev *hwdev);
+void hinic3_free_cmd_buf(struct hinic3_hwdev *hwdev,
+			 struct hinic3_cmd_buf *cmd_buf);
+void hinic3_cmdq_ceq_handler(struct hinic3_hwdev *hwdev, __le32 ceqe_data);
+
+int hinic3_cmd_buf_pair_init(struct hinic3_hwdev *hwdev,
+			     struct hinic3_cmd_buf_pair *pair);
+void hinic3_cmd_buf_pair_uninit(struct hinic3_hwdev *hwdev,
+				struct hinic3_cmd_buf_pair *pair);
+int hinic3_cmdq_direct_resp(struct hinic3_hwdev *hwdev, u8 mod, u8 cmd,
+			    struct hinic3_cmd_buf *buf_in, __le64 *out_param);
+int hinic3_cmdq_detail_resp(struct hinic3_hwdev *hwdev, u8 mod, u8 cmd,
+			    struct hinic3_cmd_buf *buf_in,
+			    struct hinic3_cmd_buf *buf_out, __le64 *out_param);
+
+void hinic3_cmdq_flush_sync_cmd(struct hinic3_hwdev *hwdev);
+int hinic3_reinit_cmdq_ctxts(struct hinic3_hwdev *hwdev);
+bool hinic3_cmdq_idle(struct hinic3_cmdq *cmdq);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_common.c

@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/iopoll.h>
+
+#include "hinic3_common.h"
+
+int hinic3_dma_zalloc_coherent_align(struct device *dev, u32 size, u32 align,
+				     gfp_t flag,
+				     struct hinic3_dma_addr_align *mem_align)
+{
+	dma_addr_t paddr, align_paddr;
+	void *vaddr, *align_vaddr;
+	u32 real_size = size;
+
+	vaddr = dma_alloc_coherent(dev, real_size, &paddr, flag);
+	if (!vaddr)
+		return -ENOMEM;
+
+	align_paddr = ALIGN(paddr, align);
+	if (align_paddr == paddr) {
+		align_vaddr = vaddr;
+		goto out;
+	}
+
+	dma_free_coherent(dev, real_size, vaddr, paddr);
+
+	/* realloc memory for align */
+	real_size = size + align;
+	vaddr = dma_alloc_coherent(dev, real_size, &paddr, flag);
+	if (!vaddr)
+		return -ENOMEM;
+
+	align_paddr = ALIGN(paddr, align);
+	align_vaddr = vaddr + (align_paddr - paddr);
+
+out:
+	mem_align->real_size = real_size;
+	mem_align->ori_vaddr = vaddr;
+	mem_align->ori_paddr = paddr;
+	mem_align->align_vaddr = align_vaddr;
+	mem_align->align_paddr = align_paddr;
+
+	return 0;
+}
+
+void hinic3_dma_free_coherent_align(struct device *dev,
+				    struct hinic3_dma_addr_align *mem_align)
+{
+	dma_free_coherent(dev, mem_align->real_size,
+			  mem_align->ori_vaddr, mem_align->ori_paddr);
+}
+
+int hinic3_wait_for_timeout(void *priv_data, wait_cpl_handler handler,
+			    u32 wait_total_ms, u32 wait_once_us)
+{
+	enum hinic3_wait_return ret;
+	int err;
+
+	err = read_poll_timeout(handler, ret,
+				!(ret & HINIC3_WAIT_PROCESS_WAITING),
+				wait_once_us, wait_total_ms * USEC_PER_MSEC,
+				false, priv_data);
+
+	if (ret == HINIC3_WAIT_PROCESS_ERR)
+		return -EIO;
+
+	return err;
+}
+
+/* Data provided to/by cmdq is arranged in structs with little endian fields but
+ * every dword (32bits) should be swapped since HW swaps it again when it
+ * copies it from/to host memory.
+ */
+void hinic3_cmdq_buf_swab32(void *data, int len)
+{
+	swab32_array(data, len / sizeof(u32));
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_common.h

@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_COMMON_H_
+#define _HINIC3_COMMON_H_
+
+#include <linux/device.h>
+
+#define HINIC3_MIN_PAGE_SIZE  0x1000
+
+struct hinic3_dma_addr_align {
+	u32        real_size;
+
+	void       *ori_vaddr;
+	dma_addr_t ori_paddr;
+
+	void       *align_vaddr;
+	dma_addr_t align_paddr;
+};
+
+enum hinic3_wait_return {
+	HINIC3_WAIT_PROCESS_CPL     = 0,
+	HINIC3_WAIT_PROCESS_WAITING = 1,
+	HINIC3_WAIT_PROCESS_ERR     = 2,
+};
+
+struct hinic3_sge {
+	__le32 hi_addr;
+	__le32 lo_addr;
+	__le32 len;
+	__le32 rsvd;
+};
+
+static inline void hinic3_set_sge(struct hinic3_sge *sge, dma_addr_t addr,
+				  __le32 len)
+{
+	sge->hi_addr = cpu_to_le32(upper_32_bits(addr));
+	sge->lo_addr = cpu_to_le32(lower_32_bits(addr));
+	sge->len = len;
+	sge->rsvd = 0;
+}
+
+int hinic3_dma_zalloc_coherent_align(struct device *dev, u32 size, u32 align,
+				     gfp_t flag,
+				     struct hinic3_dma_addr_align *mem_align);
+void hinic3_dma_free_coherent_align(struct device *dev,
+				    struct hinic3_dma_addr_align *mem_align);
+
+typedef enum hinic3_wait_return (*wait_cpl_handler)(void *priv_data);
+int hinic3_wait_for_timeout(void *priv_data, wait_cpl_handler handler,
+			    u32 wait_total_ms, u32 wait_once_us);
+
+void hinic3_cmdq_buf_swab32(void *data, int len);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_csr.h

@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_CSR_H_
+#define _HINIC3_CSR_H_
+
+#define HINIC3_CFG_REGS_FLAG                  0x40000000
+#define HINIC3_MGMT_REGS_FLAG                 0xC0000000
+#define HINIC3_REGS_FLAG_MASK                 0x3FFFFFFF
+
+#define HINIC3_VF_CFG_REG_OFFSET              0x2000
+
+/* HW interface registers */
+#define HINIC3_CSR_FUNC_ATTR0_ADDR            (HINIC3_CFG_REGS_FLAG + 0x0)
+#define HINIC3_CSR_FUNC_ATTR1_ADDR            (HINIC3_CFG_REGS_FLAG + 0x4)
+#define HINIC3_CSR_FUNC_ATTR2_ADDR            (HINIC3_CFG_REGS_FLAG + 0x8)
+#define HINIC3_CSR_FUNC_ATTR3_ADDR            (HINIC3_CFG_REGS_FLAG + 0xC)
+#define HINIC3_CSR_FUNC_ATTR4_ADDR            (HINIC3_CFG_REGS_FLAG + 0x10)
+#define HINIC3_CSR_FUNC_ATTR5_ADDR            (HINIC3_CFG_REGS_FLAG + 0x14)
+#define HINIC3_CSR_FUNC_ATTR6_ADDR            (HINIC3_CFG_REGS_FLAG + 0x18)
+
+#define HINIC3_FUNC_CSR_MAILBOX_DATA_OFF      0x80
+#define HINIC3_FUNC_CSR_MAILBOX_CONTROL_OFF   (HINIC3_CFG_REGS_FLAG + 0x0100)
+#define HINIC3_FUNC_CSR_MAILBOX_INT_OFF       (HINIC3_CFG_REGS_FLAG + 0x0104)
+#define HINIC3_FUNC_CSR_MAILBOX_RESULT_H_OFF  (HINIC3_CFG_REGS_FLAG + 0x0108)
+#define HINIC3_FUNC_CSR_MAILBOX_RESULT_L_OFF  (HINIC3_CFG_REGS_FLAG + 0x010C)
+
+#define HINIC3_HOST_CSR_BASE_ADDR             (HINIC3_MGMT_REGS_FLAG + 0x6000)
+#define HINIC3_PPF_ELECTION_OFFSET            0x0
+#define HINIC3_CSR_PPF_ELECTION_ADDR  \
+	(HINIC3_HOST_CSR_BASE_ADDR + HINIC3_PPF_ELECTION_OFFSET)
+
+#define HINIC3_CSR_DMA_ATTR_TBL_ADDR          (HINIC3_CFG_REGS_FLAG + 0x380)
+#define HINIC3_CSR_DMA_ATTR_INDIR_IDX_ADDR    (HINIC3_CFG_REGS_FLAG + 0x390)
+
+/* MSI-X registers */
+#define HINIC3_CSR_FUNC_MSI_CLR_WR_ADDR       (HINIC3_CFG_REGS_FLAG + 0x58)
+
+#define HINIC3_MSI_CLR_INDIR_RESEND_TIMER_CLR_MASK  BIT(0)
+#define HINIC3_MSI_CLR_INDIR_INT_MSK_SET_MASK       BIT(1)
+#define HINIC3_MSI_CLR_INDIR_INT_MSK_CLR_MASK       BIT(2)
+#define HINIC3_MSI_CLR_INDIR_AUTO_MSK_SET_MASK      BIT(3)
+#define HINIC3_MSI_CLR_INDIR_AUTO_MSK_CLR_MASK      BIT(4)
+#define HINIC3_MSI_CLR_INDIR_SIMPLE_INDIR_IDX_MASK  GENMASK(31, 22)
+#define HINIC3_MSI_CLR_INDIR_SET(val, member)  \
+	FIELD_PREP(HINIC3_MSI_CLR_INDIR_##member##_MASK, val)
+
+/* EQ registers */
+#define HINIC3_AEQ_INDIR_IDX_ADDR      (HINIC3_CFG_REGS_FLAG + 0x210)
+#define HINIC3_CEQ_INDIR_IDX_ADDR      (HINIC3_CFG_REGS_FLAG + 0x290)
+
+#define HINIC3_EQ_INDIR_IDX_ADDR(type)  \
+	((type == HINIC3_AEQ) ? HINIC3_AEQ_INDIR_IDX_ADDR :  \
+	 HINIC3_CEQ_INDIR_IDX_ADDR)
+
+#define HINIC3_AEQ_MTT_OFF_BASE_ADDR   (HINIC3_CFG_REGS_FLAG + 0x240)
+#define HINIC3_CEQ_MTT_OFF_BASE_ADDR   (HINIC3_CFG_REGS_FLAG + 0x2C0)
+
+#define HINIC3_CSR_EQ_PAGE_OFF_STRIDE  8
+
+#define HINIC3_AEQ_HI_PHYS_ADDR_REG(pg_num)  \
+	(HINIC3_AEQ_MTT_OFF_BASE_ADDR + (pg_num) *  \
+	 HINIC3_CSR_EQ_PAGE_OFF_STRIDE)
+
+#define HINIC3_AEQ_LO_PHYS_ADDR_REG(pg_num)  \
+	(HINIC3_AEQ_MTT_OFF_BASE_ADDR + (pg_num) *  \
+	 HINIC3_CSR_EQ_PAGE_OFF_STRIDE + 4)
+
+#define HINIC3_CEQ_HI_PHYS_ADDR_REG(pg_num)  \
+	(HINIC3_CEQ_MTT_OFF_BASE_ADDR + (pg_num) *  \
+	 HINIC3_CSR_EQ_PAGE_OFF_STRIDE)
+
+#define HINIC3_CEQ_LO_PHYS_ADDR_REG(pg_num)  \
+	(HINIC3_CEQ_MTT_OFF_BASE_ADDR + (pg_num) *  \
+	 HINIC3_CSR_EQ_PAGE_OFF_STRIDE + 4)
+
+#define HINIC3_CSR_AEQ_CTRL_0_ADDR           (HINIC3_CFG_REGS_FLAG + 0x200)
+#define HINIC3_CSR_AEQ_CTRL_1_ADDR           (HINIC3_CFG_REGS_FLAG + 0x204)
+#define HINIC3_CSR_AEQ_CONS_IDX_ADDR         (HINIC3_CFG_REGS_FLAG + 0x208)
+#define HINIC3_CSR_AEQ_PROD_IDX_ADDR         (HINIC3_CFG_REGS_FLAG + 0x20C)
+#define HINIC3_CSR_AEQ_CI_SIMPLE_INDIR_ADDR  (HINIC3_CFG_REGS_FLAG + 0x50)
+
+#define HINIC3_CSR_CEQ_CONS_IDX_ADDR         (HINIC3_CFG_REGS_FLAG + 0x288)
+#define HINIC3_CSR_CEQ_PROD_IDX_ADDR         (HINIC3_CFG_REGS_FLAG + 0x28c)
+#define HINIC3_CSR_CEQ_CI_SIMPLE_INDIR_ADDR  (HINIC3_CFG_REGS_FLAG + 0x54)
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_eqs.c

@@ -0,0 +1,840 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/delay.h>
+
+#include "hinic3_csr.h"
+#include "hinic3_eqs.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+
+#define AEQ_CTRL_0_INTR_IDX_MASK      GENMASK(9, 0)
+#define AEQ_CTRL_0_DMA_ATTR_MASK      GENMASK(17, 12)
+#define AEQ_CTRL_0_PCI_INTF_IDX_MASK  GENMASK(22, 20)
+#define AEQ_CTRL_0_INTR_MODE_MASK     BIT(31)
+#define AEQ_CTRL_0_SET(val, member)  \
+	FIELD_PREP(AEQ_CTRL_0_##member##_MASK, val)
+
+#define AEQ_CTRL_1_LEN_MASK           GENMASK(20, 0)
+#define AEQ_CTRL_1_ELEM_SIZE_MASK     GENMASK(25, 24)
+#define AEQ_CTRL_1_PAGE_SIZE_MASK     GENMASK(31, 28)
+#define AEQ_CTRL_1_SET(val, member)  \
+	FIELD_PREP(AEQ_CTRL_1_##member##_MASK, val)
+
+#define CEQ_CTRL_0_INTR_IDX_MASK      GENMASK(9, 0)
+#define CEQ_CTRL_0_DMA_ATTR_MASK      GENMASK(17, 12)
+#define CEQ_CTRL_0_LIMIT_KICK_MASK    GENMASK(23, 20)
+#define CEQ_CTRL_0_PCI_INTF_IDX_MASK  GENMASK(25, 24)
+#define CEQ_CTRL_0_PAGE_SIZE_MASK     GENMASK(30, 27)
+#define CEQ_CTRL_0_INTR_MODE_MASK     BIT(31)
+#define CEQ_CTRL_0_SET(val, member)  \
+	FIELD_PREP(CEQ_CTRL_0_##member##_MASK, val)
+
+#define CEQ_CTRL_1_LEN_MASK           GENMASK(19, 0)
+#define CEQ_CTRL_1_SET(val, member)  \
+	FIELD_PREP(CEQ_CTRL_1_##member##_MASK, val)
+
+#define CEQE_TYPE_MASK                GENMASK(25, 23)
+#define CEQE_TYPE(type)  \
+	FIELD_GET(CEQE_TYPE_MASK, le32_to_cpu(type))
+
+#define CEQE_DATA_MASK                GENMASK(25, 0)
+#define CEQE_DATA(data)               ((data) & cpu_to_le32(CEQE_DATA_MASK))
+
+#define EQ_ELEM_DESC_TYPE_MASK        GENMASK(6, 0)
+#define EQ_ELEM_DESC_SRC_MASK         BIT(7)
+#define EQ_ELEM_DESC_SIZE_MASK        GENMASK(15, 8)
+#define EQ_ELEM_DESC_WRAPPED_MASK     BIT(31)
+#define EQ_ELEM_DESC_GET(val, member)  \
+	FIELD_GET(EQ_ELEM_DESC_##member##_MASK, le32_to_cpu(val))
+
+#define EQ_CI_SIMPLE_INDIR_CI_MASK       GENMASK(20, 0)
+#define EQ_CI_SIMPLE_INDIR_ARMED_MASK    BIT(21)
+#define EQ_CI_SIMPLE_INDIR_AEQ_IDX_MASK  GENMASK(31, 30)
+#define EQ_CI_SIMPLE_INDIR_CEQ_IDX_MASK  GENMASK(31, 24)
+#define EQ_CI_SIMPLE_INDIR_SET(val, member)  \
+	FIELD_PREP(EQ_CI_SIMPLE_INDIR_##member##_MASK, val)
+
+#define EQ_CONS_IDX_REG_ADDR(eq)  \
+	(((eq)->type == HINIC3_AEQ) ?  \
+	 HINIC3_CSR_AEQ_CONS_IDX_ADDR : HINIC3_CSR_CEQ_CONS_IDX_ADDR)
+
+#define EQ_CI_SIMPLE_INDIR_REG_ADDR(eq)  \
+	(((eq)->type == HINIC3_AEQ) ?  \
+	 HINIC3_CSR_AEQ_CI_SIMPLE_INDIR_ADDR :  \
+	 HINIC3_CSR_CEQ_CI_SIMPLE_INDIR_ADDR)
+
+#define EQ_PROD_IDX_REG_ADDR(eq)  \
+	(((eq)->type == HINIC3_AEQ) ?  \
+	 HINIC3_CSR_AEQ_PROD_IDX_ADDR : HINIC3_CSR_CEQ_PROD_IDX_ADDR)
+
+#define EQ_HI_PHYS_ADDR_REG(type, pg_num)  \
+	(((type) == HINIC3_AEQ) ?  \
+	       HINIC3_AEQ_HI_PHYS_ADDR_REG(pg_num) :  \
+	       HINIC3_CEQ_HI_PHYS_ADDR_REG(pg_num))
+
+#define EQ_LO_PHYS_ADDR_REG(type, pg_num)  \
+	(((type) == HINIC3_AEQ) ?  \
+	       HINIC3_AEQ_LO_PHYS_ADDR_REG(pg_num) :  \
+	       HINIC3_CEQ_LO_PHYS_ADDR_REG(pg_num))
+
+#define EQ_MSIX_RESEND_TIMER_CLEAR  1
+
+#define HINIC3_EQ_MAX_PAGES(eq)  \
+	((eq)->type == HINIC3_AEQ ?  \
+	 HINIC3_AEQ_MAX_PAGES : HINIC3_CEQ_MAX_PAGES)
+
+#define HINIC3_TASK_PROCESS_EQE_LIMIT  1024
+#define HINIC3_EQ_UPDATE_CI_STEP       64
+#define HINIC3_EQS_WQ_NAME             "hinic3_eqs"
+
+#define HINIC3_EQ_VALID_SHIFT          31
+#define HINIC3_EQ_WRAPPED(eq)  \
+	((eq)->wrapped << HINIC3_EQ_VALID_SHIFT)
+
+#define HINIC3_EQ_WRAPPED_SHIFT        20
+#define HINIC3_EQ_CONS_IDX(eq)  \
+	((eq)->cons_idx | ((eq)->wrapped << HINIC3_EQ_WRAPPED_SHIFT))
+
+static const struct hinic3_aeq_elem *get_curr_aeq_elem(const struct hinic3_eq *eq)
+{
+	return get_q_element(&eq->qpages, eq->cons_idx, NULL);
+}
+
+static const __be32 *get_curr_ceq_elem(const struct hinic3_eq *eq)
+{
+	return get_q_element(&eq->qpages, eq->cons_idx, NULL);
+}
+
+int hinic3_aeq_register_cb(struct hinic3_hwdev *hwdev,
+			   enum hinic3_aeq_type event,
+			   hinic3_aeq_event_cb hwe_cb)
+{
+	struct hinic3_aeqs *aeqs;
+
+	aeqs = hwdev->aeqs;
+	aeqs->aeq_cb[event] = hwe_cb;
+	spin_lock_init(&aeqs->aeq_lock);
+
+	return 0;
+}
+
+void hinic3_aeq_unregister_cb(struct hinic3_hwdev *hwdev,
+			      enum hinic3_aeq_type event)
+{
+	struct hinic3_aeqs *aeqs;
+
+	aeqs = hwdev->aeqs;
+
+	spin_lock_bh(&aeqs->aeq_lock);
+	aeqs->aeq_cb[event] = NULL;
+	spin_unlock_bh(&aeqs->aeq_lock);
+}
+
+int hinic3_ceq_register_cb(struct hinic3_hwdev *hwdev,
+			   enum hinic3_ceq_event event,
+			   hinic3_ceq_event_cb callback)
+{
+	struct hinic3_ceqs *ceqs;
+
+	ceqs = hwdev->ceqs;
+	ceqs->ceq_cb[event] = callback;
+	spin_lock_init(&ceqs->ceq_lock);
+
+	return 0;
+}
+
+void hinic3_ceq_unregister_cb(struct hinic3_hwdev *hwdev,
+			      enum hinic3_ceq_event event)
+{
+	struct hinic3_ceqs *ceqs;
+
+	ceqs = hwdev->ceqs;
+
+	spin_lock_bh(&ceqs->ceq_lock);
+	ceqs->ceq_cb[event] = NULL;
+	spin_unlock_bh(&ceqs->ceq_lock);
+}
+
+/* Set consumer index in the hw. */
+static void set_eq_cons_idx(struct hinic3_eq *eq, u32 arm_state)
+{
+	u32 addr = EQ_CI_SIMPLE_INDIR_REG_ADDR(eq);
+	u32 eq_wrap_ci, val;
+
+	eq_wrap_ci = HINIC3_EQ_CONS_IDX(eq);
+	val = EQ_CI_SIMPLE_INDIR_SET(arm_state, ARMED);
+	if (eq->type == HINIC3_AEQ) {
+		val = val |
+			EQ_CI_SIMPLE_INDIR_SET(eq_wrap_ci, CI) |
+			EQ_CI_SIMPLE_INDIR_SET(eq->q_id, AEQ_IDX);
+	} else {
+		val = val |
+			EQ_CI_SIMPLE_INDIR_SET(eq_wrap_ci, CI) |
+			EQ_CI_SIMPLE_INDIR_SET(eq->q_id, CEQ_IDX);
+	}
+
+	hinic3_hwif_write_reg(eq->hwdev->hwif, addr, val);
+}
+
+static struct hinic3_ceqs *ceq_to_ceqs(const struct hinic3_eq *eq)
+{
+	return container_of(eq, struct hinic3_ceqs, ceq[eq->q_id]);
+}
+
+static void ceq_event_handler(struct hinic3_ceqs *ceqs, __le32 ceqe)
+{
+	enum hinic3_ceq_event event = CEQE_TYPE(ceqe);
+	struct hinic3_hwdev *hwdev = ceqs->hwdev;
+	__le32 ceqe_data = CEQE_DATA(ceqe);
+
+	if (event >= HINIC3_MAX_CEQ_EVENTS) {
+		dev_warn(hwdev->dev, "Ceq unknown event:%d, ceqe data: 0x%x\n",
+			 event, ceqe_data);
+		return;
+	}
+
+	spin_lock_bh(&ceqs->ceq_lock);
+	if (ceqs->ceq_cb[event])
+		ceqs->ceq_cb[event](hwdev, ceqe_data);
+
+	spin_unlock_bh(&ceqs->ceq_lock);
+}
+
+static struct hinic3_aeqs *aeq_to_aeqs(const struct hinic3_eq *eq)
+{
+	return container_of(eq, struct hinic3_aeqs, aeq[eq->q_id]);
+}
+
+static void aeq_event_handler(struct hinic3_aeqs *aeqs, __le32 aeqe,
+			      const struct hinic3_aeq_elem *aeqe_pos)
+{
+	struct hinic3_hwdev *hwdev = aeqs->hwdev;
+	u8 data[HINIC3_AEQE_DATA_SIZE], size;
+	enum hinic3_aeq_type event;
+	hinic3_aeq_event_cb hwe_cb;
+
+	if (EQ_ELEM_DESC_GET(aeqe, SRC))
+		return;
+
+	event = EQ_ELEM_DESC_GET(aeqe, TYPE);
+	if (event >= HINIC3_MAX_AEQ_EVENTS) {
+		dev_warn(hwdev->dev, "Aeq unknown event:%d\n", event);
+		return;
+	}
+
+	memcpy(data, aeqe_pos->aeqe_data, HINIC3_AEQE_DATA_SIZE);
+	swab32_array((u32 *)data, HINIC3_AEQE_DATA_SIZE / sizeof(u32));
+	size = EQ_ELEM_DESC_GET(aeqe, SIZE);
+
+	spin_lock_bh(&aeqs->aeq_lock);
+	hwe_cb = aeqs->aeq_cb[event];
+	if (hwe_cb)
+		hwe_cb(aeqs->hwdev, data, size);
+	spin_unlock_bh(&aeqs->aeq_lock);
+}
+
+static int aeq_irq_handler(struct hinic3_eq *eq)
+{
+	const struct hinic3_aeq_elem *aeqe_pos;
+	struct hinic3_aeqs *aeqs;
+	u32 i, eqe_cnt = 0;
+	__le32 aeqe;
+
+	aeqs = aeq_to_aeqs(eq);
+	for (i = 0; i < HINIC3_TASK_PROCESS_EQE_LIMIT; i++) {
+		aeqe_pos = get_curr_aeq_elem(eq);
+		aeqe = (__force __le32)swab32((__force __u32)aeqe_pos->desc);
+		/* HW updates wrapped bit, when it adds eq element event */
+		if (EQ_ELEM_DESC_GET(aeqe, WRAPPED) == eq->wrapped)
+			return 0;
+
+		/* Prevent speculative reads from element */
+		dma_rmb();
+		aeq_event_handler(aeqs, aeqe, aeqe_pos);
+		eq->cons_idx++;
+		if (eq->cons_idx == eq->eq_len) {
+			eq->cons_idx = 0;
+			eq->wrapped = !eq->wrapped;
+		}
+
+		if (++eqe_cnt >= HINIC3_EQ_UPDATE_CI_STEP) {
+			eqe_cnt = 0;
+			set_eq_cons_idx(eq, HINIC3_EQ_NOT_ARMED);
+		}
+	}
+
+	return -EAGAIN;
+}
+
+static int ceq_irq_handler(struct hinic3_eq *eq)
+{
+	struct hinic3_ceqs *ceqs;
+	u32 eqe_cnt = 0;
+	__be32 ceqe_raw;
+	__le32 ceqe;
+	u32 i;
+
+	ceqs = ceq_to_ceqs(eq);
+	for (i = 0; i < HINIC3_TASK_PROCESS_EQE_LIMIT; i++) {
+		ceqe_raw = *get_curr_ceq_elem(eq);
+		ceqe = (__force __le32)swab32((__force __u32)ceqe_raw);
+
+		/* HW updates wrapped bit, when it adds eq element event */
+		if (EQ_ELEM_DESC_GET(ceqe, WRAPPED) == eq->wrapped)
+			return 0;
+
+		ceq_event_handler(ceqs, ceqe);
+		eq->cons_idx++;
+		if (eq->cons_idx == eq->eq_len) {
+			eq->cons_idx = 0;
+			eq->wrapped = !eq->wrapped;
+		}
+
+		if (++eqe_cnt >= HINIC3_EQ_UPDATE_CI_STEP) {
+			eqe_cnt = 0;
+			set_eq_cons_idx(eq, HINIC3_EQ_NOT_ARMED);
+		}
+	}
+
+	return -EAGAIN;
+}
+
+static void reschedule_aeq_handler(struct hinic3_eq *eq)
+{
+	struct hinic3_aeqs *aeqs = aeq_to_aeqs(eq);
+
+	queue_work(aeqs->workq, &eq->aeq_work);
+}
+
+static int eq_irq_handler(struct hinic3_eq *eq)
+{
+	int err;
+
+	if (eq->type == HINIC3_AEQ)
+		err = aeq_irq_handler(eq);
+	else
+		err = ceq_irq_handler(eq);
+
+	set_eq_cons_idx(eq, err ? HINIC3_EQ_NOT_ARMED :
+			HINIC3_EQ_ARMED);
+
+	return err;
+}
+
+static void aeq_irq_work(struct work_struct *work)
+{
+	struct hinic3_eq *eq = container_of(work, struct hinic3_eq, aeq_work);
+	int err;
+
+	err = eq_irq_handler(eq);
+	if (err)
+		reschedule_aeq_handler(eq);
+}
+
+static irqreturn_t aeq_interrupt(int irq, void *data)
+{
+	struct workqueue_struct *workq;
+	struct hinic3_eq *aeq = data;
+	struct hinic3_hwdev *hwdev;
+	struct hinic3_aeqs *aeqs;
+
+	aeqs = aeq_to_aeqs(aeq);
+	hwdev = aeq->hwdev;
+
+	/* clear resend timer cnt register */
+	workq = aeqs->workq;
+	hinic3_msix_intr_clear_resend_bit(hwdev, aeq->msix_entry_idx,
+					  EQ_MSIX_RESEND_TIMER_CLEAR);
+	queue_work(workq, &aeq->aeq_work);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ceq_interrupt(int irq, void *data)
+{
+	struct hinic3_eq *ceq = data;
+	int err;
+
+	ceq->soft_intr_jif = jiffies;
+	/* clear resend timer counters */
+	hinic3_msix_intr_clear_resend_bit(ceq->hwdev, ceq->msix_entry_idx,
+					  EQ_MSIX_RESEND_TIMER_CLEAR);
+	err = eq_irq_handler(ceq);
+	if (err)
+		return IRQ_NONE;
+
+	return IRQ_HANDLED;
+}
+
+static int hinic3_set_ceq_ctrl_reg(struct hinic3_hwdev *hwdev, u16 q_id,
+				   u32 ctrl0, u32 ctrl1)
+{
+	struct comm_cmd_set_ceq_ctrl_reg ceq_ctrl = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	ceq_ctrl.func_id = hinic3_global_func_id(hwdev);
+	ceq_ctrl.q_id = q_id;
+	ceq_ctrl.ctrl0 = ctrl0;
+	ceq_ctrl.ctrl1 = ctrl1;
+
+	mgmt_msg_params_init_default(&msg_params, &ceq_ctrl, sizeof(ceq_ctrl));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SET_CEQ_CTRL_REG, &msg_params);
+	if (err || ceq_ctrl.head.status) {
+		dev_err(hwdev->dev, "Failed to set ceq %u ctrl reg, err: %d status: 0x%x\n",
+			q_id, err, ceq_ctrl.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static int set_eq_ctrls(struct hinic3_eq *eq)
+{
+	struct hinic3_hwif *hwif = eq->hwdev->hwif;
+	struct hinic3_queue_pages *qpages;
+	u8 pci_intf_idx, elem_size;
+	u32 mask, ctrl0, ctrl1;
+	u32 page_size_val;
+	int err;
+
+	qpages = &eq->qpages;
+	page_size_val = ilog2(qpages->page_size / HINIC3_MIN_PAGE_SIZE);
+	pci_intf_idx = hwif->attr.pci_intf_idx;
+
+	if (eq->type == HINIC3_AEQ) {
+		/* set ctrl0 using read-modify-write */
+		mask = AEQ_CTRL_0_INTR_IDX_MASK |
+		       AEQ_CTRL_0_DMA_ATTR_MASK |
+		       AEQ_CTRL_0_PCI_INTF_IDX_MASK |
+		       AEQ_CTRL_0_INTR_MODE_MASK;
+		ctrl0 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_AEQ_CTRL_0_ADDR);
+		ctrl0 = (ctrl0 & ~mask) |
+			AEQ_CTRL_0_SET(eq->msix_entry_idx, INTR_IDX) |
+			AEQ_CTRL_0_SET(0, DMA_ATTR) |
+			AEQ_CTRL_0_SET(pci_intf_idx, PCI_INTF_IDX) |
+			AEQ_CTRL_0_SET(HINIC3_INTR_MODE_ARMED, INTR_MODE);
+		hinic3_hwif_write_reg(hwif, HINIC3_CSR_AEQ_CTRL_0_ADDR, ctrl0);
+
+		/* HW expects log2(number of 32 byte units). */
+		elem_size = qpages->elem_size_shift - 5;
+		ctrl1 = AEQ_CTRL_1_SET(eq->eq_len, LEN) |
+			AEQ_CTRL_1_SET(elem_size, ELEM_SIZE) |
+			AEQ_CTRL_1_SET(page_size_val, PAGE_SIZE);
+		hinic3_hwif_write_reg(hwif, HINIC3_CSR_AEQ_CTRL_1_ADDR, ctrl1);
+	} else {
+		ctrl0 = CEQ_CTRL_0_SET(eq->msix_entry_idx, INTR_IDX) |
+			CEQ_CTRL_0_SET(0, DMA_ATTR) |
+			CEQ_CTRL_0_SET(0, LIMIT_KICK) |
+			CEQ_CTRL_0_SET(pci_intf_idx, PCI_INTF_IDX) |
+			CEQ_CTRL_0_SET(page_size_val, PAGE_SIZE) |
+			CEQ_CTRL_0_SET(HINIC3_INTR_MODE_ARMED, INTR_MODE);
+
+		ctrl1 = CEQ_CTRL_1_SET(eq->eq_len, LEN);
+
+		/* set ceq ctrl reg through mgmt cpu */
+		err = hinic3_set_ceq_ctrl_reg(eq->hwdev, eq->q_id, ctrl0,
+					      ctrl1);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static void ceq_elements_init(struct hinic3_eq *eq, u32 init_val)
+{
+	__be32 *ceqe;
+	u32 i;
+
+	for (i = 0; i < eq->eq_len; i++) {
+		ceqe = get_q_element(&eq->qpages, i, NULL);
+		*ceqe = cpu_to_be32(init_val);
+	}
+
+	wmb();    /* Clear ceq elements bit */
+}
+
+static void aeq_elements_init(struct hinic3_eq *eq, u32 init_val)
+{
+	struct hinic3_aeq_elem *aeqe;
+	u32 i;
+
+	for (i = 0; i < eq->eq_len; i++) {
+		aeqe = get_q_element(&eq->qpages, i, NULL);
+		aeqe->desc = cpu_to_be32(init_val);
+	}
+
+	wmb();    /* Clear aeq elements bit */
+}
+
+static void eq_elements_init(struct hinic3_eq *eq, u32 init_val)
+{
+	if (eq->type == HINIC3_AEQ)
+		aeq_elements_init(eq, init_val);
+	else
+		ceq_elements_init(eq, init_val);
+}
+
+static int alloc_eq_pages(struct hinic3_eq *eq)
+{
+	struct hinic3_hwif *hwif = eq->hwdev->hwif;
+	struct hinic3_queue_pages *qpages;
+	dma_addr_t page_paddr;
+	u32 reg, init_val;
+	u16 pg_idx;
+	int err;
+
+	qpages = &eq->qpages;
+	err = hinic3_queue_pages_alloc(eq->hwdev, qpages, HINIC3_MIN_PAGE_SIZE);
+	if (err)
+		return err;
+
+	for (pg_idx = 0; pg_idx < qpages->num_pages; pg_idx++) {
+		page_paddr = qpages->pages[pg_idx].align_paddr;
+		reg = EQ_HI_PHYS_ADDR_REG(eq->type, pg_idx);
+		hinic3_hwif_write_reg(hwif, reg, upper_32_bits(page_paddr));
+		reg = EQ_LO_PHYS_ADDR_REG(eq->type, pg_idx);
+		hinic3_hwif_write_reg(hwif, reg, lower_32_bits(page_paddr));
+	}
+
+	init_val = HINIC3_EQ_WRAPPED(eq);
+	eq_elements_init(eq, init_val);
+
+	return 0;
+}
+
+static void eq_calc_page_size_and_num(struct hinic3_eq *eq, u32 elem_size)
+{
+	u32 max_pages, min_page_size, page_size, total_size;
+
+	/* No need for complicated arithmetic. All values must be power of 2.
+	 * Multiplications give power of 2 and divisions give power of 2 without
+	 * remainder.
+	 */
+	max_pages = HINIC3_EQ_MAX_PAGES(eq);
+	min_page_size = HINIC3_MIN_PAGE_SIZE;
+	total_size = eq->eq_len * elem_size;
+
+	if (total_size <= max_pages * min_page_size)
+		page_size = min_page_size;
+	else
+		page_size = total_size / max_pages;
+
+	hinic3_queue_pages_init(&eq->qpages, eq->eq_len, page_size, elem_size);
+}
+
+static int request_eq_irq(struct hinic3_eq *eq)
+{
+	int err;
+
+	if (eq->type == HINIC3_AEQ) {
+		INIT_WORK(&eq->aeq_work, aeq_irq_work);
+		snprintf(eq->irq_name, sizeof(eq->irq_name),
+			 "hinic3_aeq%u@pci:%s", eq->q_id,
+			 pci_name(eq->hwdev->pdev));
+		err = request_irq(eq->irq_id, aeq_interrupt, 0,
+				  eq->irq_name, eq);
+	} else {
+		snprintf(eq->irq_name, sizeof(eq->irq_name),
+			 "hinic3_ceq%u@pci:%s", eq->q_id,
+			 pci_name(eq->hwdev->pdev));
+		err = request_threaded_irq(eq->irq_id, NULL, ceq_interrupt,
+					   IRQF_ONESHOT, eq->irq_name, eq);
+	}
+
+	return err;
+}
+
+static void reset_eq(struct hinic3_eq *eq)
+{
+	/* clear eq_len to force eqe drop in hardware */
+	if (eq->type == HINIC3_AEQ)
+		hinic3_hwif_write_reg(eq->hwdev->hwif,
+				      HINIC3_CSR_AEQ_CTRL_1_ADDR, 0);
+	else
+		hinic3_set_ceq_ctrl_reg(eq->hwdev, eq->q_id, 0, 0);
+
+	hinic3_hwif_write_reg(eq->hwdev->hwif, EQ_PROD_IDX_REG_ADDR(eq), 0);
+}
+
+static int init_eq(struct hinic3_eq *eq, struct hinic3_hwdev *hwdev, u16 q_id,
+		   u32 q_len, enum hinic3_eq_type type,
+		   struct msix_entry *msix_entry)
+{
+	u32 elem_size;
+	int err;
+
+	eq->hwdev = hwdev;
+	eq->q_id = q_id;
+	eq->type = type;
+	eq->eq_len = q_len;
+
+	/* Indirect access should set q_id first */
+	hinic3_hwif_write_reg(hwdev->hwif, HINIC3_EQ_INDIR_IDX_ADDR(eq->type),
+			      eq->q_id);
+
+	reset_eq(eq);
+
+	eq->cons_idx = 0;
+	eq->wrapped = 0;
+
+	elem_size = (type == HINIC3_AEQ) ? HINIC3_AEQE_SIZE : HINIC3_CEQE_SIZE;
+	eq_calc_page_size_and_num(eq, elem_size);
+
+	err = alloc_eq_pages(eq);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to allocate pages for eq\n");
+		return err;
+	}
+
+	eq->msix_entry_idx = msix_entry->entry;
+	eq->irq_id = msix_entry->vector;
+
+	err = set_eq_ctrls(eq);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set ctrls for eq\n");
+		goto err_free_queue_pages;
+	}
+
+	set_eq_cons_idx(eq, HINIC3_EQ_ARMED);
+
+	err = request_eq_irq(eq);
+	if (err) {
+		dev_err(hwdev->dev,
+			"Failed to request irq for the eq, err: %d\n", err);
+		goto err_free_queue_pages;
+	}
+
+	hinic3_set_msix_state(hwdev, eq->msix_entry_idx, HINIC3_MSIX_DISABLE);
+
+	return 0;
+
+err_free_queue_pages:
+	hinic3_queue_pages_free(hwdev, &eq->qpages);
+
+	return err;
+}
+
+static void remove_eq(struct hinic3_eq *eq)
+{
+	hinic3_set_msix_state(eq->hwdev, eq->msix_entry_idx,
+			      HINIC3_MSIX_DISABLE);
+	free_irq(eq->irq_id, eq);
+	/* Indirect access should set q_id first */
+	hinic3_hwif_write_reg(eq->hwdev->hwif,
+			      HINIC3_EQ_INDIR_IDX_ADDR(eq->type),
+			      eq->q_id);
+
+	if (eq->type == HINIC3_AEQ) {
+		disable_work_sync(&eq->aeq_work);
+		/* clear eq_len to avoid hw access host memory */
+		hinic3_hwif_write_reg(eq->hwdev->hwif,
+				      HINIC3_CSR_AEQ_CTRL_1_ADDR, 0);
+	} else {
+		hinic3_set_ceq_ctrl_reg(eq->hwdev, eq->q_id, 0, 0);
+	}
+
+	/* update consumer index to avoid invalid interrupt */
+	eq->cons_idx = hinic3_hwif_read_reg(eq->hwdev->hwif,
+					    EQ_PROD_IDX_REG_ADDR(eq));
+	set_eq_cons_idx(eq, HINIC3_EQ_NOT_ARMED);
+	hinic3_queue_pages_free(eq->hwdev, &eq->qpages);
+}
+
+int hinic3_aeqs_init(struct hinic3_hwdev *hwdev, u16 num_aeqs,
+		     struct msix_entry *msix_entries)
+{
+	struct hinic3_aeqs *aeqs;
+	u16 q_id;
+	int err;
+
+	aeqs = kzalloc_obj(*aeqs);
+	if (!aeqs)
+		return -ENOMEM;
+
+	hwdev->aeqs = aeqs;
+	aeqs->hwdev = hwdev;
+	aeqs->num_aeqs = num_aeqs;
+	aeqs->workq = alloc_workqueue(HINIC3_EQS_WQ_NAME, WQ_MEM_RECLAIM | WQ_PERCPU,
+				      HINIC3_MAX_AEQS);
+	if (!aeqs->workq) {
+		dev_err(hwdev->dev, "Failed to initialize aeq workqueue\n");
+		err = -ENOMEM;
+		goto err_free_aeqs;
+	}
+
+	for (q_id = 0; q_id < num_aeqs; q_id++) {
+		err = init_eq(&aeqs->aeq[q_id], hwdev, q_id,
+			      HINIC3_DEFAULT_AEQ_LEN, HINIC3_AEQ,
+			      &msix_entries[q_id]);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to init aeq %u\n",
+				q_id);
+			goto err_remove_eqs;
+		}
+	}
+	for (q_id = 0; q_id < num_aeqs; q_id++)
+		hinic3_set_msix_state(hwdev, aeqs->aeq[q_id].msix_entry_idx,
+				      HINIC3_MSIX_ENABLE);
+
+	return 0;
+
+err_remove_eqs:
+	while (q_id > 0) {
+		q_id--;
+		remove_eq(&aeqs->aeq[q_id]);
+	}
+
+	destroy_workqueue(aeqs->workq);
+err_free_aeqs:
+	kfree(aeqs);
+
+	return err;
+}
+
+void hinic3_aeqs_free(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_aeqs *aeqs = hwdev->aeqs;
+	enum hinic3_aeq_type aeq_event;
+	struct hinic3_eq *eq;
+	u16 q_id;
+
+	for (q_id = 0; q_id < aeqs->num_aeqs; q_id++) {
+		eq = aeqs->aeq + q_id;
+		remove_eq(eq);
+		hinic3_free_irq(hwdev, eq->irq_id);
+	}
+
+	for (aeq_event = 0; aeq_event < HINIC3_MAX_AEQ_EVENTS; aeq_event++)
+		hinic3_aeq_unregister_cb(hwdev, aeq_event);
+
+	destroy_workqueue(aeqs->workq);
+
+	kfree(aeqs);
+}
+
+void hinic3_dump_aeq_info(struct hinic3_hwdev *hwdev)
+{
+	const struct hinic3_aeq_elem *aeqe_pos;
+	u32 addr, ci, pi, ctrl0, idx;
+	struct hinic3_eq *eq;
+	int q_id;
+
+	for (q_id = 0; q_id < hwdev->aeqs->num_aeqs; q_id++) {
+		eq = &hwdev->aeqs->aeq[q_id];
+		/* Indirect access should set q_id first */
+		hinic3_hwif_write_reg(eq->hwdev->hwif,
+				      HINIC3_EQ_INDIR_IDX_ADDR(eq->type),
+				      eq->q_id);
+
+		addr = HINIC3_CSR_AEQ_CTRL_0_ADDR;
+
+		ctrl0 = hinic3_hwif_read_reg(hwdev->hwif, addr);
+
+		idx = hinic3_hwif_read_reg(hwdev->hwif,
+					   HINIC3_EQ_INDIR_IDX_ADDR(eq->type));
+
+		addr = EQ_CONS_IDX_REG_ADDR(eq);
+		ci = hinic3_hwif_read_reg(hwdev->hwif, addr);
+		addr = EQ_PROD_IDX_REG_ADDR(eq);
+		pi = hinic3_hwif_read_reg(hwdev->hwif, addr);
+		aeqe_pos = get_curr_aeq_elem(eq);
+		dev_err(hwdev->dev,
+			"Aeq id: %d, idx: %u, ctrl0: 0x%08x, ci: 0x%08x, pi: 0x%x, work_state: 0x%x, wrap: %u, desc: 0x%x swci:0x%x\n",
+			q_id, idx, ctrl0, ci, pi, work_busy(&eq->aeq_work),
+			eq->wrapped, be32_to_cpu(aeqe_pos->desc), eq->cons_idx);
+	}
+}
+
+int hinic3_ceqs_init(struct hinic3_hwdev *hwdev, u16 num_ceqs,
+		     struct msix_entry *msix_entries)
+{
+	struct hinic3_ceqs *ceqs;
+	u16 q_id;
+	int err;
+
+	ceqs = kzalloc_obj(*ceqs);
+	if (!ceqs)
+		return -ENOMEM;
+
+	hwdev->ceqs = ceqs;
+	ceqs->hwdev = hwdev;
+	ceqs->num_ceqs = num_ceqs;
+
+	for (q_id = 0; q_id < num_ceqs; q_id++) {
+		err = init_eq(&ceqs->ceq[q_id], hwdev, q_id,
+			      HINIC3_DEFAULT_CEQ_LEN, HINIC3_CEQ,
+			      &msix_entries[q_id]);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to init ceq %u\n",
+				q_id);
+			goto err_free_ceqs;
+		}
+	}
+	for (q_id = 0; q_id < num_ceqs; q_id++)
+		hinic3_set_msix_state(hwdev, ceqs->ceq[q_id].msix_entry_idx,
+				      HINIC3_MSIX_ENABLE);
+
+	return 0;
+
+err_free_ceqs:
+	while (q_id > 0) {
+		q_id--;
+		remove_eq(&ceqs->ceq[q_id]);
+	}
+
+	kfree(ceqs);
+
+	return err;
+}
+
+void hinic3_ceqs_free(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_ceqs *ceqs = hwdev->ceqs;
+	enum hinic3_ceq_event ceq_event;
+	struct hinic3_eq *eq;
+	u16 q_id;
+
+	for (q_id = 0; q_id < ceqs->num_ceqs; q_id++) {
+		eq = ceqs->ceq + q_id;
+		remove_eq(eq);
+		hinic3_free_irq(hwdev, eq->irq_id);
+	}
+
+	for (ceq_event = 0; ceq_event < HINIC3_MAX_CEQ_EVENTS; ceq_event++)
+		hinic3_ceq_unregister_cb(hwdev, ceq_event);
+
+	kfree(ceqs);
+}
+
+void hinic3_dump_ceq_info(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_eq *eq;
+	u32 addr, ci, pi;
+	int q_id;
+
+	for (q_id = 0; q_id < hwdev->ceqs->num_ceqs; q_id++) {
+		eq = &hwdev->ceqs->ceq[q_id];
+		/* Indirect access should set q_id first */
+		hinic3_hwif_write_reg(eq->hwdev->hwif,
+				      HINIC3_EQ_INDIR_IDX_ADDR(eq->type),
+				      eq->q_id);
+
+		addr = EQ_CONS_IDX_REG_ADDR(eq);
+		ci = hinic3_hwif_read_reg(hwdev->hwif, addr);
+		addr = EQ_PROD_IDX_REG_ADDR(eq);
+		pi = hinic3_hwif_read_reg(hwdev->hwif, addr);
+		dev_err(hwdev->dev,
+			"Ceq id: %d, ci: 0x%08x, sw_ci: 0x%08x, pi: 0x%x, wrap: %u, ceqe: 0x%x\n",
+			q_id, ci, eq->cons_idx, pi,
+			eq->wrapped, be32_to_cpu(*get_curr_ceq_elem(eq)));
+
+		dev_err(hwdev->dev, "Ceq last response soft interrupt time: %u\n",
+			jiffies_to_msecs(jiffies - eq->soft_intr_jif));
+	}
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_eqs.h

@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_EQS_H_
+#define _HINIC3_EQS_H_
+
+#include <linux/interrupt.h>
+
+#include "hinic3_hw_cfg.h"
+#include "hinic3_queue_common.h"
+
+#define HINIC3_MAX_AEQS              4
+#define HINIC3_MAX_CEQS              32
+
+#define HINIC3_AEQ_MAX_PAGES         4
+#define HINIC3_CEQ_MAX_PAGES         8
+
+#define HINIC3_AEQE_SIZE             64
+#define HINIC3_CEQE_SIZE             4
+
+#define HINIC3_AEQE_DESC_SIZE        4
+#define HINIC3_AEQE_DATA_SIZE        (HINIC3_AEQE_SIZE - HINIC3_AEQE_DESC_SIZE)
+
+#define HINIC3_DEFAULT_AEQ_LEN       0x10000
+#define HINIC3_DEFAULT_CEQ_LEN       0x10000
+
+#define HINIC3_EQ_IRQ_NAME_LEN       64
+
+#define HINIC3_EQ_USLEEP_LOW_BOUND   900
+#define HINIC3_EQ_USLEEP_HIGH_BOUND  1000
+
+enum hinic3_eq_type {
+	HINIC3_AEQ = 0,
+	HINIC3_CEQ = 1,
+};
+
+enum hinic3_eq_intr_mode {
+	HINIC3_INTR_MODE_ARMED  = 0,
+	HINIC3_INTR_MODE_ALWAYS = 1,
+};
+
+enum hinic3_eq_ci_arm_state {
+	HINIC3_EQ_NOT_ARMED = 0,
+	HINIC3_EQ_ARMED     = 1,
+};
+
+struct hinic3_eq {
+	struct hinic3_hwdev       *hwdev;
+	struct hinic3_queue_pages qpages;
+	u16                       q_id;
+	enum hinic3_eq_type       type;
+	u32                       eq_len;
+	u32                       cons_idx;
+	u8                        wrapped;
+	u32                       irq_id;
+	u16                       msix_entry_idx;
+	char                      irq_name[HINIC3_EQ_IRQ_NAME_LEN];
+	struct work_struct        aeq_work;
+
+	u64                       soft_intr_jif;
+};
+
+struct hinic3_aeq_elem {
+	u8     aeqe_data[HINIC3_AEQE_DATA_SIZE];
+	__be32 desc;
+};
+
+enum hinic3_aeq_type {
+	HINIC3_HW_INTER_INT   = 0,
+	HINIC3_MBX_FROM_FUNC  = 1,
+	HINIC3_MSG_FROM_FW    = 2,
+	HINIC3_MAX_AEQ_EVENTS = 6,
+};
+
+typedef void (*hinic3_aeq_event_cb)(struct hinic3_hwdev *hwdev, u8 *data,
+				    u8 size);
+
+struct hinic3_aeqs {
+	struct hinic3_hwdev     *hwdev;
+	hinic3_aeq_event_cb     aeq_cb[HINIC3_MAX_AEQ_EVENTS];
+	struct hinic3_eq        aeq[HINIC3_MAX_AEQS];
+	u16                     num_aeqs;
+	struct workqueue_struct *workq;
+	/* lock for aeq event flag */
+	spinlock_t              aeq_lock;
+};
+
+enum hinic3_ceq_event {
+	HINIC3_CMDQ           = 3,
+	HINIC3_MAX_CEQ_EVENTS = 6,
+};
+
+typedef void (*hinic3_ceq_event_cb)(struct hinic3_hwdev *hwdev,
+				    __le32 ceqe_data);
+
+struct hinic3_ceqs {
+	struct hinic3_hwdev *hwdev;
+
+	hinic3_ceq_event_cb ceq_cb[HINIC3_MAX_CEQ_EVENTS];
+
+	struct hinic3_eq    ceq[HINIC3_MAX_CEQS];
+	u16                 num_ceqs;
+	/* lock for ceq event flag */
+	spinlock_t          ceq_lock;
+};
+
+int hinic3_aeqs_init(struct hinic3_hwdev *hwdev, u16 num_aeqs,
+		     struct msix_entry *msix_entries);
+void hinic3_aeqs_free(struct hinic3_hwdev *hwdev);
+int hinic3_aeq_register_cb(struct hinic3_hwdev *hwdev,
+			   enum hinic3_aeq_type event,
+			   hinic3_aeq_event_cb hwe_cb);
+void hinic3_aeq_unregister_cb(struct hinic3_hwdev *hwdev,
+			      enum hinic3_aeq_type event);
+void hinic3_dump_aeq_info(struct hinic3_hwdev *hwdev);
+
+int hinic3_ceqs_init(struct hinic3_hwdev *hwdev, u16 num_ceqs,
+		     struct msix_entry *msix_entries);
+void hinic3_ceqs_free(struct hinic3_hwdev *hwdev);
+int hinic3_ceq_register_cb(struct hinic3_hwdev *hwdev,
+			   enum hinic3_ceq_event event,
+			   hinic3_ceq_event_cb callback);
+void hinic3_ceq_unregister_cb(struct hinic3_hwdev *hwdev,
+			      enum hinic3_ceq_event event);
+void hinic3_dump_ceq_info(struct hinic3_hwdev *hwdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_ethtool.c

@@ -0,0 +1,425 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2026. All rights reserved.
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+
+#include "hinic3_lld.h"
+#include "hinic3_hw_comm.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_cfg.h"
+
+#define HINIC3_MGMT_VERSION_MAX_LEN     32
+
+static void hinic3_get_drvinfo(struct net_device *netdev,
+			       struct ethtool_drvinfo *info)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u8 mgmt_ver[HINIC3_MGMT_VERSION_MAX_LEN];
+	struct pci_dev *pdev = nic_dev->pdev;
+	int err;
+
+	strscpy(info->driver, HINIC3_NIC_DRV_NAME, sizeof(info->driver));
+	strscpy(info->bus_info, pci_name(pdev), sizeof(info->bus_info));
+
+	err = hinic3_get_mgmt_version(nic_dev->hwdev, mgmt_ver,
+				      HINIC3_MGMT_VERSION_MAX_LEN);
+	if (err) {
+		netdev_err(netdev, "Failed to get fw version\n");
+		return;
+	}
+
+	snprintf(info->fw_version, sizeof(info->fw_version), "%s", mgmt_ver);
+}
+
+static u32 hinic3_get_msglevel(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	return nic_dev->msg_enable;
+}
+
+static void hinic3_set_msglevel(struct net_device *netdev, u32 data)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	nic_dev->msg_enable = data;
+
+	netdev_dbg(netdev, "Set message level: 0x%x\n", data);
+}
+
+static const u32 hinic3_link_mode_ge[] = {
+	ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+	ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
+	ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_10ge_base_r[] = {
+	ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
+	ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
+	ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,
+	ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
+	ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
+	ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_25ge_base_r[] = {
+	ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
+	ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
+	ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_40ge_base_r4[] = {
+	ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
+	ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
+	ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
+	ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_50ge_base_r[] = {
+	ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
+	ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
+	ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_50ge_base_r2[] = {
+	ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
+	ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
+	ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_100ge_base_r[] = {
+	ETHTOOL_LINK_MODE_100000baseKR_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseSR_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseCR_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_100ge_base_r2[] = {
+	ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_100ge_base_r4[] = {
+	ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
+	ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_200ge_base_r2[] = {
+	ETHTOOL_LINK_MODE_200000baseKR2_Full_BIT,
+	ETHTOOL_LINK_MODE_200000baseSR2_Full_BIT,
+	ETHTOOL_LINK_MODE_200000baseCR2_Full_BIT,
+};
+
+static const u32 hinic3_link_mode_200ge_base_r4[] = {
+	ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT,
+	ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT,
+	ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT,
+};
+
+struct hw2ethtool_link_mode {
+	const u32 *link_mode_bit_arr;
+	u32       arr_size;
+	u32       speed;
+};
+
+static const struct hw2ethtool_link_mode
+	hw2ethtool_link_mode_table[LINK_MODE_MAX_NUMBERS] = {
+	[LINK_MODE_GE] = {
+		.link_mode_bit_arr = hinic3_link_mode_ge,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_ge),
+		.speed             = SPEED_1000,
+	},
+	[LINK_MODE_10GE_BASE_R] = {
+		.link_mode_bit_arr = hinic3_link_mode_10ge_base_r,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_10ge_base_r),
+		.speed             = SPEED_10000,
+	},
+	[LINK_MODE_25GE_BASE_R] = {
+		.link_mode_bit_arr = hinic3_link_mode_25ge_base_r,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_25ge_base_r),
+		.speed             = SPEED_25000,
+	},
+	[LINK_MODE_40GE_BASE_R4] = {
+		.link_mode_bit_arr = hinic3_link_mode_40ge_base_r4,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_40ge_base_r4),
+		.speed             = SPEED_40000,
+	},
+	[LINK_MODE_50GE_BASE_R] = {
+		.link_mode_bit_arr = hinic3_link_mode_50ge_base_r,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_50ge_base_r),
+		.speed             = SPEED_50000,
+	},
+	[LINK_MODE_50GE_BASE_R2] = {
+		.link_mode_bit_arr = hinic3_link_mode_50ge_base_r2,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_50ge_base_r2),
+		.speed             = SPEED_50000,
+	},
+	[LINK_MODE_100GE_BASE_R] = {
+		.link_mode_bit_arr = hinic3_link_mode_100ge_base_r,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_100ge_base_r),
+		.speed             = SPEED_100000,
+	},
+	[LINK_MODE_100GE_BASE_R2] = {
+		.link_mode_bit_arr = hinic3_link_mode_100ge_base_r2,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_100ge_base_r2),
+		.speed             = SPEED_100000,
+	},
+	[LINK_MODE_100GE_BASE_R4] = {
+		.link_mode_bit_arr = hinic3_link_mode_100ge_base_r4,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_100ge_base_r4),
+		.speed             = SPEED_100000,
+	},
+	[LINK_MODE_200GE_BASE_R2] = {
+		.link_mode_bit_arr = hinic3_link_mode_200ge_base_r2,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_200ge_base_r2),
+		.speed             = SPEED_200000,
+	},
+	[LINK_MODE_200GE_BASE_R4] = {
+		.link_mode_bit_arr = hinic3_link_mode_200ge_base_r4,
+		.arr_size          = ARRAY_SIZE(hinic3_link_mode_200ge_base_r4),
+		.speed             = SPEED_200000,
+	},
+};
+
+#define GET_SUPPORTED_MODE     0
+#define GET_ADVERTISED_MODE    1
+
+struct hinic3_link_settings {
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
+
+	u32 speed;
+	u8  duplex;
+	u8  port;
+	u8  autoneg;
+};
+
+#define HINIC3_ADD_SUPPORTED_LINK_MODE(ecmd, mode) \
+	set_bit(ETHTOOL_LINK_##mode##_BIT, (ecmd)->supported)
+#define HINIC3_ADD_ADVERTISED_LINK_MODE(ecmd, mode) \
+	set_bit(ETHTOOL_LINK_##mode##_BIT, (ecmd)->advertising)
+
+static void hinic3_add_speed_link_mode(unsigned long *bitmap, u32 mode)
+{
+	u32 i;
+
+	for (i = 0; i < hw2ethtool_link_mode_table[mode].arr_size; i++) {
+		if (hw2ethtool_link_mode_table[mode].link_mode_bit_arr[i] >=
+		    __ETHTOOL_LINK_MODE_MASK_NBITS)
+			continue;
+
+		set_bit(hw2ethtool_link_mode_table[mode].link_mode_bit_arr[i],
+			bitmap);
+	}
+}
+
+/* Related to enum mag_cmd_port_speed */
+static const u32 hw_to_ethtool_speed[] = {
+	(u32)SPEED_UNKNOWN, SPEED_10,    SPEED_100,   SPEED_1000,   SPEED_10000,
+	SPEED_25000,        SPEED_40000, SPEED_50000, SPEED_100000, SPEED_200000
+};
+
+static void
+hinic3_add_ethtool_link_mode(struct hinic3_link_settings *link_settings,
+			     u32 hw_link_mode, u32 name)
+{
+	unsigned long *advertising_mask = link_settings->advertising;
+	unsigned long *supported_mask = link_settings->supported;
+	u32 link_mode;
+
+	for (link_mode = 0; link_mode < LINK_MODE_MAX_NUMBERS; link_mode++) {
+		if (hw_link_mode & BIT(link_mode)) {
+			if (name == GET_SUPPORTED_MODE)
+				hinic3_add_speed_link_mode(supported_mask,
+							   link_mode);
+			else
+				hinic3_add_speed_link_mode(advertising_mask,
+							   link_mode);
+		}
+	}
+}
+
+static void
+hinic3_link_speed_set(struct net_device *netdev,
+		      struct hinic3_link_settings *link_settings,
+		      struct hinic3_nic_port_info *port_info)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	bool link_status_up;
+	int err;
+
+	if (port_info->supported_mode != LINK_MODE_UNKNOWN)
+		hinic3_add_ethtool_link_mode(link_settings,
+					     port_info->supported_mode,
+					     GET_SUPPORTED_MODE);
+	if (port_info->advertised_mode != LINK_MODE_UNKNOWN)
+		hinic3_add_ethtool_link_mode(link_settings,
+					     port_info->advertised_mode,
+					     GET_ADVERTISED_MODE);
+
+	err = hinic3_get_link_status(nic_dev->hwdev, &link_status_up);
+	if (!err && link_status_up) {
+		link_settings->speed =
+			port_info->speed < ARRAY_SIZE(hw_to_ethtool_speed) ?
+			hw_to_ethtool_speed[port_info->speed] :
+			(u32)SPEED_UNKNOWN;
+
+		link_settings->duplex = port_info->duplex;
+	} else {
+		link_settings->speed = (u32)SPEED_UNKNOWN;
+		link_settings->duplex = DUPLEX_UNKNOWN;
+	}
+}
+
+static void
+hinic3_link_port_type_set(struct hinic3_link_settings *link_settings,
+			  u8 port_type)
+{
+	switch (port_type) {
+	case MAG_CMD_WIRE_TYPE_ELECTRIC:
+		HINIC3_ADD_SUPPORTED_LINK_MODE(link_settings, MODE_TP);
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_TP);
+		link_settings->port = PORT_TP;
+		break;
+
+	case MAG_CMD_WIRE_TYPE_AOC:
+	case MAG_CMD_WIRE_TYPE_MM:
+	case MAG_CMD_WIRE_TYPE_SM:
+		HINIC3_ADD_SUPPORTED_LINK_MODE(link_settings, MODE_FIBRE);
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_FIBRE);
+		link_settings->port = PORT_FIBRE;
+		break;
+
+	case MAG_CMD_WIRE_TYPE_COPPER:
+		HINIC3_ADD_SUPPORTED_LINK_MODE(link_settings, MODE_FIBRE);
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_FIBRE);
+		link_settings->port = PORT_DA;
+		break;
+
+	case MAG_CMD_WIRE_TYPE_BACKPLANE:
+		HINIC3_ADD_SUPPORTED_LINK_MODE(link_settings, MODE_Backplane);
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_Backplane);
+		link_settings->port = PORT_NONE;
+		break;
+
+	default:
+		link_settings->port = PORT_OTHER;
+		break;
+	}
+}
+
+static int
+hinic3_get_link_pause_settings(struct net_device *netdev,
+			       struct hinic3_link_settings *link_settings)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_nic_pause_config nic_pause = {};
+	int err;
+
+	err = hinic3_get_pause_info(nic_dev, &nic_pause);
+	if (err) {
+		netdev_err(netdev, "Failed to get pause param from hw\n");
+		return err;
+	}
+
+	HINIC3_ADD_SUPPORTED_LINK_MODE(link_settings, MODE_Pause);
+	if (nic_pause.rx_pause && nic_pause.tx_pause) {
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_Pause);
+	} else if (nic_pause.tx_pause) {
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings,
+						MODE_Asym_Pause);
+	} else if (nic_pause.rx_pause) {
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_Pause);
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings,
+						MODE_Asym_Pause);
+	}
+
+	return 0;
+}
+
+static int
+hinic3_get_link_settings(struct net_device *netdev,
+			 struct hinic3_link_settings *link_settings)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_nic_port_info port_info = {};
+	int err;
+
+	err = hinic3_get_port_info(nic_dev->hwdev, &port_info);
+	if (err) {
+		netdev_err(netdev, "Failed to get port info\n");
+		return err;
+	}
+
+	hinic3_link_speed_set(netdev, link_settings, &port_info);
+
+	hinic3_link_port_type_set(link_settings, port_info.port_type);
+
+	link_settings->autoneg = port_info.autoneg_state == PORT_CFG_AN_ON ?
+				 AUTONEG_ENABLE : AUTONEG_DISABLE;
+	if (port_info.autoneg_cap)
+		HINIC3_ADD_SUPPORTED_LINK_MODE(link_settings, MODE_Autoneg);
+	if (port_info.autoneg_state == PORT_CFG_AN_ON)
+		HINIC3_ADD_ADVERTISED_LINK_MODE(link_settings, MODE_Autoneg);
+
+	if (!HINIC3_IS_VF(nic_dev->hwdev)) {
+		err = hinic3_get_link_pause_settings(netdev, link_settings);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static int
+hinic3_get_link_ksettings(struct net_device *netdev,
+			  struct ethtool_link_ksettings *link_settings)
+{
+	struct ethtool_link_settings *base = &link_settings->base;
+	struct hinic3_link_settings settings = {};
+	int err;
+
+	ethtool_link_ksettings_zero_link_mode(link_settings, supported);
+	ethtool_link_ksettings_zero_link_mode(link_settings, advertising);
+
+	err = hinic3_get_link_settings(netdev, &settings);
+	if (err)
+		return err;
+
+	bitmap_copy(link_settings->link_modes.supported, settings.supported,
+		    __ETHTOOL_LINK_MODE_MASK_NBITS);
+	bitmap_copy(link_settings->link_modes.advertising, settings.advertising,
+		    __ETHTOOL_LINK_MODE_MASK_NBITS);
+
+	base->autoneg = settings.autoneg;
+	base->speed = settings.speed;
+	base->duplex = settings.duplex;
+	base->port = settings.port;
+
+	return 0;
+}
+
+static const struct ethtool_ops hinic3_ethtool_ops = {
+	.supported_coalesce_params      = ETHTOOL_COALESCE_USECS |
+					  ETHTOOL_COALESCE_PKT_RATE_RX_USECS,
+	.get_link_ksettings             = hinic3_get_link_ksettings,
+	.get_drvinfo                    = hinic3_get_drvinfo,
+	.get_msglevel                   = hinic3_get_msglevel,
+	.set_msglevel                   = hinic3_set_msglevel,
+	.get_link                       = ethtool_op_get_link,
+};
+
+void hinic3_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &hinic3_ethtool_ops;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_filter.c

@@ -0,0 +1,417 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+
+#include "hinic3_hwif.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_cfg.h"
+
+static int hinic3_filter_addr_sync(struct net_device *netdev, u8 *addr)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	return hinic3_set_mac(nic_dev->hwdev, addr, 0,
+			      hinic3_global_func_id(nic_dev->hwdev));
+}
+
+static int hinic3_filter_addr_unsync(struct net_device *netdev, u8 *addr)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	/* The addr is in use */
+	if (ether_addr_equal(addr, netdev->dev_addr))
+		return 0;
+
+	return hinic3_del_mac(nic_dev->hwdev, addr, 0,
+			      hinic3_global_func_id(nic_dev->hwdev));
+}
+
+void hinic3_clean_mac_list_filter(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *f;
+
+	list_for_each_entry_safe(f, ftmp, &nic_dev->uc_filter_list, list) {
+		if (f->state == HINIC3_MAC_HW_SYNCED)
+			hinic3_filter_addr_unsync(netdev, f->addr);
+		list_del(&f->list);
+		kfree(f);
+	}
+
+	list_for_each_entry_safe(f, ftmp, &nic_dev->mc_filter_list, list) {
+		if (f->state == HINIC3_MAC_HW_SYNCED)
+			hinic3_filter_addr_unsync(netdev, f->addr);
+		list_del(&f->list);
+		kfree(f);
+	}
+}
+
+static struct hinic3_mac_filter *
+hinic3_find_mac(const struct list_head *filter_list, u8 *addr)
+{
+	struct hinic3_mac_filter *f;
+
+	list_for_each_entry(f, filter_list, list) {
+		if (ether_addr_equal(addr, f->addr))
+			return f;
+	}
+	return NULL;
+}
+
+static void hinic3_add_filter(struct net_device *netdev,
+			      struct list_head *mac_filter_list,
+			      u8 *addr)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_mac_filter *f;
+
+	f = kzalloc_obj(*f, GFP_ATOMIC);
+	if (!f)
+		return;
+
+	ether_addr_copy(f->addr, addr);
+
+	INIT_LIST_HEAD(&f->list);
+	list_add_tail(&f->list, mac_filter_list);
+
+	f->state = HINIC3_MAC_WAIT_HW_SYNC;
+	set_bit(HINIC3_MAC_FILTER_CHANGED, &nic_dev->flags);
+}
+
+static void hinic3_del_filter(struct net_device *netdev,
+			      struct hinic3_mac_filter *f)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	set_bit(HINIC3_MAC_FILTER_CHANGED, &nic_dev->flags);
+
+	if (f->state == HINIC3_MAC_WAIT_HW_SYNC) {
+		/* have not added to hw, delete it directly */
+		list_del(&f->list);
+		kfree(f);
+		return;
+	}
+
+	f->state = HINIC3_MAC_WAIT_HW_UNSYNC;
+}
+
+static struct hinic3_mac_filter *
+hinic3_mac_filter_entry_clone(const struct hinic3_mac_filter *src)
+{
+	struct hinic3_mac_filter *f;
+
+	f = kzalloc_obj(*f, GFP_ATOMIC);
+	if (!f)
+		return NULL;
+
+	*f = *src;
+	INIT_LIST_HEAD(&f->list);
+
+	return f;
+}
+
+static void hinic3_undo_del_filter_entries(struct list_head *filter_list,
+					   const struct list_head *from)
+{
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *f;
+
+	list_for_each_entry_safe(f, ftmp, from, list) {
+		if (hinic3_find_mac(filter_list, f->addr))
+			continue;
+
+		if (f->state == HINIC3_MAC_HW_UNSYNCED)
+			f->state = HINIC3_MAC_WAIT_HW_UNSYNC;
+
+		list_move_tail(&f->list, filter_list);
+	}
+}
+
+static void hinic3_undo_add_filter_entries(struct list_head *filter_list,
+					   const struct list_head *from)
+{
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *tmp;
+	struct hinic3_mac_filter *f;
+
+	list_for_each_entry_safe(f, ftmp, from, list) {
+		tmp = hinic3_find_mac(filter_list, f->addr);
+		if (tmp && tmp->state == HINIC3_MAC_HW_SYNCING)
+			tmp->state = HINIC3_MAC_WAIT_HW_SYNC;
+	}
+}
+
+static void hinic3_cleanup_filter_list(const struct list_head *head)
+{
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *f;
+
+	list_for_each_entry_safe(f, ftmp, head, list) {
+		list_del(&f->list);
+		kfree(f);
+	}
+}
+
+static int hinic3_mac_filter_sync_hw(struct net_device *netdev,
+				     struct list_head *del_list,
+				     struct list_head *add_list,
+				     int *add_count)
+{
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *f;
+	int err;
+
+	if (!list_empty(del_list)) {
+		list_for_each_entry_safe(f, ftmp, del_list, list) {
+			/* ignore errors when deleting mac */
+			hinic3_filter_addr_unsync(netdev, f->addr);
+			list_del(&f->list);
+			kfree(f);
+		}
+	}
+
+	if (!list_empty(add_list)) {
+		list_for_each_entry_safe(f, ftmp, add_list, list) {
+			if (f->state != HINIC3_MAC_HW_SYNCING)
+				continue;
+
+			err = hinic3_filter_addr_sync(netdev, f->addr);
+			if (err) {
+				netdev_err(netdev, "Failed to add mac\n");
+				return err;
+			}
+
+			f->state = HINIC3_MAC_HW_SYNCED;
+			(*add_count)++;
+		}
+	}
+
+	return 0;
+}
+
+static int hinic3_mac_filter_sync(struct net_device *netdev,
+				  struct list_head *mac_filter_list, bool uc)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct list_head tmp_del_list, tmp_add_list;
+	struct hinic3_mac_filter *fclone;
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *f;
+	int err = 0, add_count = 0;
+
+	INIT_LIST_HEAD(&tmp_del_list);
+	INIT_LIST_HEAD(&tmp_add_list);
+
+	list_for_each_entry_safe(f, ftmp, mac_filter_list, list) {
+		if (f->state != HINIC3_MAC_WAIT_HW_UNSYNC)
+			continue;
+
+		f->state = HINIC3_MAC_HW_UNSYNCED;
+		list_move_tail(&f->list, &tmp_del_list);
+	}
+
+	list_for_each_entry_safe(f, ftmp, mac_filter_list, list) {
+		if (f->state != HINIC3_MAC_WAIT_HW_SYNC)
+			continue;
+
+		fclone = hinic3_mac_filter_entry_clone(f);
+		if (!fclone) {
+			hinic3_undo_del_filter_entries(mac_filter_list,
+						       &tmp_del_list);
+			hinic3_undo_add_filter_entries(mac_filter_list,
+						       &tmp_add_list);
+
+			netdev_err(netdev,
+				   "Failed to clone mac_filter_entry\n");
+			err = -ENOMEM;
+			goto cleanup_tmp_filter_list;
+		}
+
+		f->state = HINIC3_MAC_HW_SYNCING;
+		list_add_tail(&fclone->list, &tmp_add_list);
+	}
+
+	err = hinic3_mac_filter_sync_hw(netdev, &tmp_del_list,
+					&tmp_add_list, &add_count);
+	if (err) {
+		/* there were errors, delete all mac in hw */
+		hinic3_undo_add_filter_entries(mac_filter_list, &tmp_add_list);
+		add_count = 0;
+		/* VF does not support promiscuous mode,
+		 * don't delete any other uc mac.
+		 */
+		if (!HINIC3_IS_VF(nic_dev->hwdev) || !uc) {
+			list_for_each_entry_safe(f, ftmp, mac_filter_list,
+						 list) {
+				if (f->state != HINIC3_MAC_HW_SYNCED)
+					continue;
+
+				fclone = hinic3_mac_filter_entry_clone(f);
+				if (!fclone)
+					break;
+
+				f->state = HINIC3_MAC_WAIT_HW_SYNC;
+				list_add_tail(&fclone->list, &tmp_del_list);
+			}
+		}
+
+		hinic3_mac_filter_sync_hw(netdev, &tmp_del_list,
+					  &tmp_add_list, &add_count);
+	}
+
+cleanup_tmp_filter_list:
+	hinic3_cleanup_filter_list(&tmp_del_list);
+	hinic3_cleanup_filter_list(&tmp_add_list);
+
+	return err ? err : add_count;
+}
+
+static void hinic3_mac_filter_sync_all(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int add_count;
+
+	if (test_bit(HINIC3_MAC_FILTER_CHANGED, &nic_dev->flags)) {
+		clear_bit(HINIC3_MAC_FILTER_CHANGED, &nic_dev->flags);
+		add_count = hinic3_mac_filter_sync(netdev,
+						   &nic_dev->uc_filter_list,
+						   true);
+		if (add_count < 0 &&
+		    hinic3_test_support(nic_dev, HINIC3_NIC_F_PROMISC))
+			set_bit(HINIC3_PROMISC_FORCE_ON,
+				&nic_dev->rx_mod_state);
+		else if (add_count)
+			clear_bit(HINIC3_PROMISC_FORCE_ON,
+				  &nic_dev->rx_mod_state);
+
+		add_count = hinic3_mac_filter_sync(netdev,
+						   &nic_dev->mc_filter_list,
+						   false);
+		if (add_count < 0 &&
+		    hinic3_test_support(nic_dev, HINIC3_NIC_F_ALLMULTI))
+			set_bit(HINIC3_ALLMULTI_FORCE_ON,
+				&nic_dev->rx_mod_state);
+		else if (add_count)
+			clear_bit(HINIC3_ALLMULTI_FORCE_ON,
+				  &nic_dev->rx_mod_state);
+	}
+}
+
+#define HINIC3_DEFAULT_RX_MODE \
+	(L2NIC_RX_MODE_UC | L2NIC_RX_MODE_MC | L2NIC_RX_MODE_BC)
+
+static void hinic3_update_mac_filter(struct net_device *netdev,
+				     const struct netdev_hw_addr_list *src_list,
+				     struct list_head *filter_list)
+{
+	struct hinic3_mac_filter *filter;
+	struct hinic3_mac_filter *ftmp;
+	struct hinic3_mac_filter *f;
+	struct netdev_hw_addr *ha;
+
+	/* add addr if not already in the filter list */
+	netif_addr_lock_bh(netdev);
+	netdev_hw_addr_list_for_each(ha, src_list) {
+		filter = hinic3_find_mac(filter_list, ha->addr);
+		if (!filter)
+			hinic3_add_filter(netdev, filter_list, ha->addr);
+		else if (filter->state == HINIC3_MAC_WAIT_HW_UNSYNC)
+			filter->state = HINIC3_MAC_HW_SYNCED;
+	}
+	netif_addr_unlock_bh(netdev);
+
+	/* delete addr if not in netdev list */
+	list_for_each_entry_safe(f, ftmp, filter_list, list) {
+		bool found = false;
+
+		netif_addr_lock_bh(netdev);
+		netdev_hw_addr_list_for_each(ha, src_list)
+			if (ether_addr_equal(ha->addr, f->addr)) {
+				found = true;
+				break;
+			}
+		netif_addr_unlock_bh(netdev);
+
+		if (found)
+			continue;
+
+		hinic3_del_filter(netdev, f);
+	}
+}
+
+static void hinic3_sync_rx_mode_to_hw(struct net_device *netdev, int promisc_en,
+				      int allmulti_en)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u32 rx_mode = HINIC3_DEFAULT_RX_MODE;
+	int err;
+
+	rx_mode |= (promisc_en ? L2NIC_RX_MODE_PROMISC : 0);
+	rx_mode |= (allmulti_en ? L2NIC_RX_MODE_MC_ALL : 0);
+
+	if (promisc_en != test_bit(HINIC3_HW_PROMISC_ON,
+				   &nic_dev->rx_mod_state))
+		netdev_dbg(netdev, "%s promisc mode\n",
+			   promisc_en ? "Enter" : "Left");
+	if (allmulti_en !=
+	    test_bit(HINIC3_HW_ALLMULTI_ON, &nic_dev->rx_mod_state))
+		netdev_dbg(netdev, "%s all_multi mode\n",
+			   allmulti_en ? "Enter" : "Left");
+
+	err = hinic3_set_rx_mode(nic_dev->hwdev, rx_mode);
+	if (err) {
+		netdev_err(netdev, "Failed to set rx_mode\n");
+		return;
+	}
+
+	promisc_en ? set_bit(HINIC3_HW_PROMISC_ON, &nic_dev->rx_mod_state) :
+		clear_bit(HINIC3_HW_PROMISC_ON, &nic_dev->rx_mod_state);
+
+	allmulti_en ? set_bit(HINIC3_HW_ALLMULTI_ON, &nic_dev->rx_mod_state) :
+		clear_bit(HINIC3_HW_ALLMULTI_ON, &nic_dev->rx_mod_state);
+}
+
+void hinic3_set_rx_mode_work(struct work_struct *work)
+{
+	int promisc_en = 0, allmulti_en = 0;
+	struct hinic3_nic_dev *nic_dev;
+	struct net_device *netdev;
+
+	nic_dev = container_of(work, struct hinic3_nic_dev, rx_mode_work);
+	netdev = nic_dev->netdev;
+
+	if (test_and_clear_bit(HINIC3_UPDATE_MAC_FILTER, &nic_dev->flags)) {
+		hinic3_update_mac_filter(netdev, &netdev->uc,
+					 &nic_dev->uc_filter_list);
+		hinic3_update_mac_filter(netdev, &netdev->mc,
+					 &nic_dev->mc_filter_list);
+	}
+
+	hinic3_mac_filter_sync_all(netdev);
+
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_PROMISC))
+		promisc_en = !!(netdev->flags & IFF_PROMISC) ||
+			test_bit(HINIC3_PROMISC_FORCE_ON,
+				 &nic_dev->rx_mod_state);
+
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_ALLMULTI))
+		allmulti_en = !!(netdev->flags & IFF_ALLMULTI) ||
+			test_bit(HINIC3_ALLMULTI_FORCE_ON,
+				 &nic_dev->rx_mod_state);
+
+	if (promisc_en != test_bit(HINIC3_HW_PROMISC_ON,
+				   &nic_dev->rx_mod_state) ||
+	    allmulti_en != test_bit(HINIC3_HW_ALLMULTI_ON,
+				    &nic_dev->rx_mod_state))
+		hinic3_sync_rx_mode_to_hw(netdev, promisc_en, allmulti_en);
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.c

@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/device.h>
+
+#include "hinic3_hw_cfg.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+
+#define HINIC3_CFG_MAX_QP  256
+
+static void hinic3_parse_pub_res_cap(struct hinic3_hwdev *hwdev,
+				     struct hinic3_dev_cap *cap,
+				     const struct cfg_cmd_dev_cap *dev_cap,
+				     enum hinic3_func_type type)
+{
+	cap->port_id = dev_cap->port_id;
+	cap->supp_svcs_bitmap = dev_cap->svc_cap_en;
+
+	cap->cos_valid_bitmap = dev_cap->valid_cos_bitmap;
+	cap->port_cos_valid_bitmap = dev_cap->port_cos_valid_bitmap;
+
+	if (type != HINIC3_FUNC_TYPE_VF)
+		cap->max_vf = dev_cap->max_vf;
+	else
+		cap->max_vf = 0;
+
+	dev_dbg(hwdev->dev, "Port_id: 0x%x, cos_bitmap: 0x%x, Max_vf: 0x%x\n",
+		cap->port_id, cap->cos_valid_bitmap, cap->max_vf);
+}
+
+static void hinic3_parse_l2nic_res_cap(struct hinic3_hwdev *hwdev,
+				       struct hinic3_dev_cap *cap,
+				       const struct cfg_cmd_dev_cap *dev_cap,
+				       enum hinic3_func_type type)
+{
+	struct hinic3_nic_service_cap *nic_svc_cap = &cap->nic_svc_cap;
+
+	nic_svc_cap->max_sqs = min(dev_cap->nic_max_sq_id + 1,
+				   HINIC3_CFG_MAX_QP);
+
+	nic_svc_cap->max_rqs = min(dev_cap->nic_max_rq_id + 1,
+				   HINIC3_CFG_MAX_QP);
+	nic_svc_cap->default_num_queues = dev_cap->nic_default_num_queues;
+
+	dev_dbg(hwdev->dev, "L2nic resource capability, max_sqs: 0x%x, max_rqs: 0x%x\n",
+		nic_svc_cap->max_sqs, nic_svc_cap->max_rqs);
+}
+
+static void hinic3_parse_dev_cap(struct hinic3_hwdev *hwdev,
+				 const struct cfg_cmd_dev_cap *dev_cap,
+				 enum hinic3_func_type type)
+{
+	struct hinic3_dev_cap *cap = &hwdev->cfg_mgmt->cap;
+
+	/* Public resource */
+	hinic3_parse_pub_res_cap(hwdev, cap, dev_cap, type);
+
+	/* L2 NIC resource */
+	if (hinic3_support_nic(hwdev))
+		hinic3_parse_l2nic_res_cap(hwdev, cap, dev_cap, type);
+}
+
+static int hinic3_get_cap_from_fw(struct hinic3_hwdev *hwdev,
+				  enum hinic3_func_type type)
+{
+	struct mgmt_msg_params msg_params = {};
+	struct cfg_cmd_dev_cap dev_cap = {};
+	int err;
+
+	dev_cap.func_id = hinic3_global_func_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &dev_cap, sizeof(dev_cap));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_CFGM,
+				       CFG_CMD_GET_DEV_CAP, &msg_params);
+	if (err || dev_cap.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to get capability from FW, err: %d, status: 0x%x\n",
+			err, dev_cap.head.status);
+		return -EIO;
+	}
+
+	hinic3_parse_dev_cap(hwdev, &dev_cap, type);
+
+	return 0;
+}
+
+static int hinic3_get_dev_cap(struct hinic3_hwdev *hwdev)
+{
+	enum hinic3_func_type type = HINIC3_FUNC_TYPE(hwdev);
+	int err;
+
+	switch (type) {
+	case HINIC3_FUNC_TYPE_PF:
+	case HINIC3_FUNC_TYPE_VF:
+		err = hinic3_get_cap_from_fw(hwdev, type);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to get FW capability\n");
+			return err;
+		}
+		break;
+	default:
+		dev_err(hwdev->dev, "Unsupported PCI Function type: %d\n",
+			type);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int hinic3_init_irq_info(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_cfg_mgmt_info *cfg_mgmt = hwdev->cfg_mgmt;
+	struct hinic3_hwif *hwif = hwdev->hwif;
+	u16 intr_num = hwif->attr.num_irqs;
+	struct hinic3_irq_info *irq_info;
+	u16 intr_needed;
+
+	intr_needed = hwif->attr.msix_flex_en ? (hwif->attr.num_aeqs +
+		      hwif->attr.num_ceqs + hwif->attr.num_sq) : intr_num;
+	if (intr_needed > intr_num) {
+		dev_warn(hwdev->dev, "Irq num cfg %d is less than the needed irq num %d msix_flex_en %d\n",
+			 intr_num, intr_needed, hwdev->hwif->attr.msix_flex_en);
+		intr_needed = intr_num;
+	}
+
+	irq_info = &cfg_mgmt->irq_info;
+	irq_info->irq = kzalloc_objs(struct hinic3_irq, intr_num);
+	if (!irq_info->irq)
+		return -ENOMEM;
+
+	irq_info->num_irq_hw = intr_needed;
+	mutex_init(&irq_info->irq_mutex);
+
+	return 0;
+}
+
+static int hinic3_init_irq_alloc_info(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_cfg_mgmt_info *cfg_mgmt = hwdev->cfg_mgmt;
+	struct hinic3_irq *irq = cfg_mgmt->irq_info.irq;
+	u16 nreq = cfg_mgmt->irq_info.num_irq_hw;
+	struct pci_dev *pdev = hwdev->pdev;
+	int actual_irq;
+	u16 i;
+
+	actual_irq = pci_alloc_irq_vectors(pdev, 2, nreq, PCI_IRQ_MSIX);
+	if (actual_irq < 0) {
+		dev_err(hwdev->dev, "Alloc msix entries with threshold 2 failed. actual_irq: %d\n",
+			actual_irq);
+		return -ENOMEM;
+	}
+
+	nreq = actual_irq;
+	cfg_mgmt->irq_info.num_irq = nreq;
+
+	for (i = 0; i < nreq; ++i) {
+		irq[i].msix_entry_idx = i;
+		irq[i].irq_id = pci_irq_vector(pdev, i);
+		irq[i].allocated = false;
+	}
+
+	return 0;
+}
+
+int hinic3_init_cfg_mgmt(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_cfg_mgmt_info *cfg_mgmt;
+	int err;
+
+	cfg_mgmt = kzalloc_obj(*cfg_mgmt);
+	if (!cfg_mgmt)
+		return -ENOMEM;
+
+	hwdev->cfg_mgmt = cfg_mgmt;
+
+	err = hinic3_init_irq_info(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init hinic3_irq_mgmt_info, err: %d\n",
+			err);
+		goto err_free_cfg_mgmt;
+	}
+
+	err = hinic3_init_irq_alloc_info(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init hinic3_irq_info, err: %d\n",
+			err);
+		goto err_free_irq_info;
+	}
+
+	return 0;
+
+err_free_irq_info:
+	kfree(cfg_mgmt->irq_info.irq);
+	cfg_mgmt->irq_info.irq = NULL;
+err_free_cfg_mgmt:
+	kfree(cfg_mgmt);
+
+	return err;
+}
+
+void hinic3_free_cfg_mgmt(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_cfg_mgmt_info *cfg_mgmt = hwdev->cfg_mgmt;
+
+	pci_free_irq_vectors(hwdev->pdev);
+	kfree(cfg_mgmt->irq_info.irq);
+	cfg_mgmt->irq_info.irq = NULL;
+	kfree(cfg_mgmt);
+}
+
+int hinic3_alloc_irqs(struct hinic3_hwdev *hwdev, u16 num,
+		      struct msix_entry *alloc_arr, u16 *act_num)
+{
+	struct hinic3_irq_info *irq_info;
+	struct hinic3_irq *curr;
+	u16 i, found = 0;
+
+	irq_info = &hwdev->cfg_mgmt->irq_info;
+	mutex_lock(&irq_info->irq_mutex);
+	for (i = 0; i < irq_info->num_irq && found < num; i++) {
+		curr = irq_info->irq + i;
+		if (curr->allocated)
+			continue;
+		curr->allocated = true;
+		alloc_arr[found].vector = curr->irq_id;
+		alloc_arr[found].entry = curr->msix_entry_idx;
+		found++;
+	}
+	mutex_unlock(&irq_info->irq_mutex);
+
+	*act_num = found;
+
+	return found == 0 ? -ENOMEM : 0;
+}
+
+void hinic3_free_irq(struct hinic3_hwdev *hwdev, u32 irq_id)
+{
+	struct hinic3_irq_info *irq_info;
+	struct hinic3_irq *curr;
+	u16 i;
+
+	irq_info = &hwdev->cfg_mgmt->irq_info;
+	mutex_lock(&irq_info->irq_mutex);
+	for (i = 0; i < irq_info->num_irq; i++) {
+		curr = irq_info->irq + i;
+		if (curr->irq_id == irq_id) {
+			curr->allocated = false;
+			break;
+		}
+	}
+	mutex_unlock(&irq_info->irq_mutex);
+}
+
+int hinic3_init_capability(struct hinic3_hwdev *hwdev)
+{
+	return hinic3_get_dev_cap(hwdev);
+}
+
+bool hinic3_support_nic(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->cfg_mgmt->cap.supp_svcs_bitmap &
+	       BIT(HINIC3_SERVICE_T_NIC);
+}
+
+u16 hinic3_func_max_qnum(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->cfg_mgmt->cap.nic_svc_cap.max_sqs;
+}
+
+u8 hinic3_physical_port_id(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->cfg_mgmt->cap.port_id;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hw_cfg.h

@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_HW_CFG_H_
+#define _HINIC3_HW_CFG_H_
+
+#include <linux/mutex.h>
+#include <linux/pci.h>
+
+struct hinic3_hwdev;
+
+struct hinic3_irq {
+	u32  irq_id;
+	u16  msix_entry_idx;
+	bool allocated;
+};
+
+struct hinic3_irq_info {
+	struct hinic3_irq *irq;
+	u16               num_irq;
+	/* device max irq number */
+	u16               num_irq_hw;
+	/* protect irq alloc and free */
+	struct mutex      irq_mutex;
+};
+
+struct hinic3_nic_service_cap {
+	u16 max_sqs;
+	u16 max_rqs;
+	u16 default_num_queues;
+};
+
+/* Device capabilities */
+struct hinic3_dev_cap {
+	/* Bitmasks of services supported by device */
+	u16                           supp_svcs_bitmap;
+	/* Physical port */
+	u8                            port_id;
+
+	u8                            cos_valid_bitmap;
+	u8                            port_cos_valid_bitmap;
+	/* max number of VFs that PF supports */
+	u16                           max_vf;
+
+	struct hinic3_nic_service_cap nic_svc_cap;
+};
+
+struct hinic3_cfg_mgmt_info {
+	struct hinic3_irq_info irq_info;
+	struct hinic3_dev_cap  cap;
+};
+
+int hinic3_init_cfg_mgmt(struct hinic3_hwdev *hwdev);
+void hinic3_free_cfg_mgmt(struct hinic3_hwdev *hwdev);
+
+int hinic3_alloc_irqs(struct hinic3_hwdev *hwdev, u16 num,
+		      struct msix_entry *alloc_arr, u16 *act_num);
+void hinic3_free_irq(struct hinic3_hwdev *hwdev, u32 irq_id);
+
+int hinic3_init_capability(struct hinic3_hwdev *hwdev);
+bool hinic3_support_nic(struct hinic3_hwdev *hwdev);
+u16 hinic3_func_max_qnum(struct hinic3_hwdev *hwdev);
+u8 hinic3_physical_port_id(struct hinic3_hwdev *hwdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hw_comm.c

@@ -0,0 +1,610 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/delay.h>
+
+#include "hinic3_cmdq.h"
+#include "hinic3_hw_comm.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+
+static int hinic3_get_interrupt_cfg(struct hinic3_hwdev *hwdev,
+				    struct hinic3_interrupt_info *info)
+{
+	struct comm_cmd_cfg_msix_ctrl_reg msix_cfg = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	msix_cfg.func_id = hinic3_global_func_id(hwdev);
+	msix_cfg.msix_index = info->msix_index;
+	msix_cfg.opcode = MGMT_MSG_CMD_OP_GET;
+
+	mgmt_msg_params_init_default(&msg_params, &msix_cfg, sizeof(msix_cfg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_CFG_MSIX_CTRL_REG, &msg_params);
+	if (err || msix_cfg.head.status) {
+		dev_err(hwdev->dev, "Failed to get interrupt config, err: %d, status: 0x%x\n",
+			err, msix_cfg.head.status);
+		return -EFAULT;
+	}
+
+	info->lli_credit_limit = msix_cfg.lli_credit_cnt;
+	info->lli_timer_cfg = msix_cfg.lli_timer_cnt;
+	info->pending_limit = msix_cfg.pending_cnt;
+	info->coalesc_timer_cfg = msix_cfg.coalesce_timer_cnt;
+	info->resend_timer_cfg = msix_cfg.resend_timer_cnt;
+
+	return 0;
+}
+
+int hinic3_set_interrupt_cfg_direct(struct hinic3_hwdev *hwdev,
+				    const struct hinic3_interrupt_info *info)
+{
+	struct comm_cmd_cfg_msix_ctrl_reg msix_cfg = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	msix_cfg.func_id = hinic3_global_func_id(hwdev);
+	msix_cfg.msix_index = info->msix_index;
+	msix_cfg.opcode = MGMT_MSG_CMD_OP_SET;
+
+	msix_cfg.lli_credit_cnt = info->lli_credit_limit;
+	msix_cfg.lli_timer_cnt = info->lli_timer_cfg;
+	msix_cfg.pending_cnt = info->pending_limit;
+	msix_cfg.coalesce_timer_cnt = info->coalesc_timer_cfg;
+	msix_cfg.resend_timer_cnt = info->resend_timer_cfg;
+
+	mgmt_msg_params_init_default(&msg_params, &msix_cfg, sizeof(msix_cfg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_CFG_MSIX_CTRL_REG, &msg_params);
+	if (err || msix_cfg.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set interrupt config, err: %d, status: 0x%x\n",
+			err, msix_cfg.head.status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int hinic3_set_interrupt_cfg(struct hinic3_hwdev *hwdev,
+			     struct hinic3_interrupt_info info)
+{
+	struct hinic3_interrupt_info temp_info;
+	int err;
+
+	temp_info.msix_index = info.msix_index;
+
+	err = hinic3_get_interrupt_cfg(hwdev, &temp_info);
+	if (err)
+		return err;
+
+	info.lli_credit_limit = temp_info.lli_credit_limit;
+	info.lli_timer_cfg = temp_info.lli_timer_cfg;
+
+	if (!info.interrupt_coalesc_set) {
+		info.pending_limit = temp_info.pending_limit;
+		info.coalesc_timer_cfg = temp_info.coalesc_timer_cfg;
+		info.resend_timer_cfg = temp_info.resend_timer_cfg;
+	}
+
+	return hinic3_set_interrupt_cfg_direct(hwdev, &info);
+}
+
+int hinic3_func_reset(struct hinic3_hwdev *hwdev, u16 func_id, u64 reset_flag)
+{
+	struct comm_cmd_func_reset func_reset = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	func_reset.func_id = func_id;
+	func_reset.reset_flag = reset_flag;
+
+	mgmt_msg_params_init_default(&msg_params, &func_reset,
+				     sizeof(func_reset));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_FUNC_RESET, &msg_params);
+	if (err || func_reset.head.status) {
+		dev_err(hwdev->dev, "Failed to reset func resources, reset_flag 0x%llx, err: %d, status: 0x%x\n",
+			reset_flag, err, func_reset.head.status);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int hinic3_comm_features_nego(struct hinic3_hwdev *hwdev, u8 opcode,
+				     u64 *s_feature, u16 size)
+{
+	struct comm_cmd_feature_nego feature_nego = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	feature_nego.func_id = hinic3_global_func_id(hwdev);
+	feature_nego.opcode = opcode;
+	if (opcode == MGMT_MSG_CMD_OP_SET)
+		memcpy(feature_nego.s_feature, s_feature,
+		       array_size(size, sizeof(u64)));
+
+	mgmt_msg_params_init_default(&msg_params, &feature_nego,
+				     sizeof(feature_nego));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_FEATURE_NEGO, &msg_params);
+	if (err || feature_nego.head.status) {
+		dev_err(hwdev->dev, "Failed to negotiate feature, err: %d, status: 0x%x\n",
+			err, feature_nego.head.status);
+		return -EINVAL;
+	}
+
+	if (opcode == MGMT_MSG_CMD_OP_GET)
+		memcpy(s_feature, feature_nego.s_feature,
+		       array_size(size, sizeof(u64)));
+
+	return 0;
+}
+
+int hinic3_get_comm_features(struct hinic3_hwdev *hwdev, u64 *s_feature,
+			     u16 size)
+{
+	return hinic3_comm_features_nego(hwdev, MGMT_MSG_CMD_OP_GET, s_feature,
+					 size);
+}
+
+int hinic3_set_comm_features(struct hinic3_hwdev *hwdev, u64 *s_feature,
+			     u16 size)
+{
+	return hinic3_comm_features_nego(hwdev, MGMT_MSG_CMD_OP_SET, s_feature,
+					 size);
+}
+
+int hinic3_get_global_attr(struct hinic3_hwdev *hwdev,
+			   struct comm_global_attr *attr)
+{
+	struct comm_cmd_get_glb_attr get_attr = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	mgmt_msg_params_init_default(&msg_params, &get_attr, sizeof(get_attr));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_GET_GLOBAL_ATTR, &msg_params);
+	if (err || get_attr.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to get global attribute, err: %d, status: 0x%x\n",
+			err, get_attr.head.status);
+		return -EIO;
+	}
+
+	memcpy(attr, &get_attr.attr, sizeof(*attr));
+
+	return 0;
+}
+
+int hinic3_set_func_svc_used_state(struct hinic3_hwdev *hwdev, u16 svc_type,
+				   u8 state)
+{
+	struct comm_cmd_set_func_svc_used_state used_state = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	used_state.func_id = hinic3_global_func_id(hwdev);
+	used_state.svc_type = svc_type;
+	used_state.used_state = state;
+
+	mgmt_msg_params_init_default(&msg_params, &used_state,
+				     sizeof(used_state));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SET_FUNC_SVC_USED_STATE,
+				       &msg_params);
+	if (err || used_state.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set func service used state, err: %d, status: 0x%x\n",
+			err, used_state.head.status);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int hinic3_set_dma_attr_tbl(struct hinic3_hwdev *hwdev, u8 entry_idx, u8 st,
+			    u8 at, u8 ph, u8 no_snooping, u8 tph_en)
+{
+	struct comm_cmd_set_dma_attr dma_attr = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	dma_attr.func_id = hinic3_global_func_id(hwdev);
+	dma_attr.entry_idx = entry_idx;
+	dma_attr.st = st;
+	dma_attr.at = at;
+	dma_attr.ph = ph;
+	dma_attr.no_snooping = no_snooping;
+	dma_attr.tph_en = tph_en;
+
+	mgmt_msg_params_init_default(&msg_params, &dma_attr, sizeof(dma_attr));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SET_DMA_ATTR, &msg_params);
+	if (err || dma_attr.head.status) {
+		dev_err(hwdev->dev, "Failed to set dma attr, err: %d, status: 0x%x\n",
+			err, dma_attr.head.status);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int hinic3_set_wq_page_size(struct hinic3_hwdev *hwdev, u16 func_idx,
+			    u32 page_size)
+{
+	struct comm_cmd_cfg_wq_page_size page_size_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	page_size_info.func_id = func_idx;
+	page_size_info.page_size = ilog2(page_size / HINIC3_MIN_PAGE_SIZE);
+	page_size_info.opcode = MGMT_MSG_CMD_OP_SET;
+
+	mgmt_msg_params_init_default(&msg_params, &page_size_info,
+				     sizeof(page_size_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_CFG_PAGESIZE, &msg_params);
+	if (err || page_size_info.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set wq page size, err: %d, status: 0x%x\n",
+			err, page_size_info.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_set_cmdq_depth(struct hinic3_hwdev *hwdev, u16 cmdq_depth)
+{
+	struct comm_cmd_set_root_ctxt root_ctxt = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	root_ctxt.func_id = hinic3_global_func_id(hwdev);
+
+	root_ctxt.set_cmdq_depth = 1;
+	root_ctxt.cmdq_depth = ilog2(cmdq_depth);
+
+	mgmt_msg_params_init_default(&msg_params, &root_ctxt,
+				     sizeof(root_ctxt));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SET_VAT, &msg_params);
+	if (err || root_ctxt.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set cmdq depth, err: %d, status: 0x%x\n",
+			err, root_ctxt.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+#define HINIC3_FLR_TIMEOUT    1000
+
+static enum hinic3_wait_return hinic3_check_flr_finish_handler(void *priv_data)
+{
+	struct hinic3_hwdev *hwdev = priv_data;
+	struct hinic3_hwif *hwif = hwdev->hwif;
+	enum hinic3_pf_status status;
+
+	if (!hwdev->chip_present_flag)
+		return HINIC3_WAIT_PROCESS_ERR;
+
+	status = hinic3_get_pf_status(hwif);
+	if (status == HINIC3_PF_STATUS_FLR_FINISH_FLAG) {
+		hinic3_set_pf_status(hwif, HINIC3_PF_STATUS_ACTIVE_FLAG);
+		return HINIC3_WAIT_PROCESS_CPL;
+	}
+
+	return HINIC3_WAIT_PROCESS_WAITING;
+}
+
+static int hinic3_wait_for_flr_finish(struct hinic3_hwdev *hwdev)
+{
+	return hinic3_wait_for_timeout(hwdev, hinic3_check_flr_finish_handler,
+				       HINIC3_FLR_TIMEOUT, 0xa * USEC_PER_MSEC);
+}
+
+#define HINIC3_WAIT_CMDQ_IDLE_TIMEOUT    5000
+
+static enum hinic3_wait_return check_cmdq_stop_handler(void *priv_data)
+{
+	struct hinic3_hwdev *hwdev = priv_data;
+	enum hinic3_cmdq_type cmdq_type;
+	struct hinic3_cmdqs *cmdqs;
+
+	/* Stop waiting when card unpresent */
+	if (!hwdev->chip_present_flag)
+		return HINIC3_WAIT_PROCESS_ERR;
+
+	cmdqs = hwdev->cmdqs;
+	for (cmdq_type = 0; cmdq_type < cmdqs->cmdq_num; cmdq_type++) {
+		if (!hinic3_cmdq_idle(&cmdqs->cmdq[cmdq_type]))
+			return HINIC3_WAIT_PROCESS_WAITING;
+	}
+
+	return HINIC3_WAIT_PROCESS_CPL;
+}
+
+static int wait_cmdq_stop(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_cmdqs *cmdqs = hwdev->cmdqs;
+	enum hinic3_cmdq_type cmdq_type;
+	int err;
+
+	if (!(cmdqs->status & HINIC3_CMDQ_ENABLE))
+		return 0;
+
+	cmdqs->status &= ~HINIC3_CMDQ_ENABLE;
+	err = hinic3_wait_for_timeout(hwdev, check_cmdq_stop_handler,
+				      HINIC3_WAIT_CMDQ_IDLE_TIMEOUT,
+				      USEC_PER_MSEC);
+
+	if (err)
+		goto err_reenable_cmdq;
+
+	return 0;
+
+err_reenable_cmdq:
+	for (cmdq_type = 0; cmdq_type < cmdqs->cmdq_num; cmdq_type++) {
+		if (!hinic3_cmdq_idle(&cmdqs->cmdq[cmdq_type]))
+			dev_err(hwdev->dev, "Cmdq %d is busy\n", cmdq_type);
+	}
+	cmdqs->status |= HINIC3_CMDQ_ENABLE;
+
+	return err;
+}
+
+int hinic3_func_rx_tx_flush(struct hinic3_hwdev *hwdev)
+{
+	struct comm_cmd_clear_resource clear_db = {};
+	struct comm_cmd_clear_resource clr_res = {};
+	struct hinic3_hwif *hwif = hwdev->hwif;
+	struct mgmt_msg_params msg_params = {};
+	int ret = 0;
+	int err;
+
+	if (!hwdev->chip_present_flag)
+		return 0;
+
+	err = wait_cmdq_stop(hwdev);
+	if (err) {
+		dev_warn(hwdev->dev, "CMDQ is still working, CMDQ timeout value is unreasonable\n");
+		ret = err;
+	}
+
+	hinic3_toggle_doorbell(hwif, DISABLE_DOORBELL);
+
+	clear_db.func_id = hwif->attr.func_global_idx;
+	mgmt_msg_params_init_default(&msg_params, &clear_db, sizeof(clear_db));
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_FLUSH_DOORBELL, &msg_params);
+	if (err || clear_db.head.status) {
+		dev_warn(hwdev->dev, "Failed to flush doorbell, err: %d, status: 0x%x\n",
+			 err, clear_db.head.status);
+		if (err)
+			ret = err;
+		else
+			ret = -EFAULT;
+	}
+
+	hinic3_set_pf_status(hwif, HINIC3_PF_STATUS_FLR_START_FLAG);
+
+	clr_res.func_id = hwif->attr.func_global_idx;
+	msg_params.buf_in = &clr_res;
+	msg_params.in_size = sizeof(clr_res);
+	err = hinic3_send_mbox_to_mgmt_no_ack(hwdev, MGMT_MOD_COMM,
+					      COMM_CMD_START_FLUSH,
+					      &msg_params);
+	if (err) {
+		dev_warn(hwdev->dev, "Failed to notice flush message, err: %d\n",
+			 err);
+		ret = err;
+	}
+
+	if (HINIC3_FUNC_TYPE(hwdev) != HINIC3_FUNC_TYPE_VF) {
+		err = hinic3_wait_for_flr_finish(hwdev);
+		if (err) {
+			dev_warn(hwdev->dev, "Wait firmware FLR timeout\n");
+			ret = err;
+		}
+	}
+
+	hinic3_toggle_doorbell(hwif, ENABLE_DOORBELL);
+
+	err = hinic3_reinit_cmdq_ctxts(hwdev);
+	if (err) {
+		dev_warn(hwdev->dev, "Failed to reinit cmdq\n");
+		ret = err;
+	}
+
+	return ret;
+}
+
+int hinic3_set_bdf_ctxt(struct hinic3_hwdev *hwdev,
+			struct comm_cmd_bdf_info *bdf_info)
+{
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	mgmt_msg_params_init_default(&msg_params, bdf_info, sizeof(*bdf_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SEND_BDF_INFO, &msg_params);
+	if (err || bdf_info->head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set bdf info to fw, err: %d, status: 0x%x\n",
+			err, bdf_info->head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static int hinic3_sync_time(struct hinic3_hwdev *hwdev, u64 time)
+{
+	struct comm_cmd_sync_time time_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	time_info.mstime = time;
+
+	mgmt_msg_params_init_default(&msg_params, &time_info,
+				     sizeof(time_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SYNC_TIME, &msg_params);
+	if (err || time_info.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to sync time to mgmt, err: %d, status: 0x%x\n",
+			err, time_info.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+void hinic3_sync_time_to_fw(struct hinic3_hwdev *hwdev)
+{
+	struct timespec64 ts = {};
+	u64 time;
+	int err;
+
+	ktime_get_real_ts64(&ts);
+	time = (u64)(ts.tv_sec * MSEC_PER_SEC + ts.tv_nsec / NSEC_PER_MSEC);
+
+	err = hinic3_sync_time(hwdev, time);
+	if (err)
+		dev_err(hwdev->dev,
+			"Synchronize UTC time to firmware failed, err=%d\n",
+			err);
+}
+
+static int get_hw_rx_buf_size_idx(int rx_buf_sz, u16 *buf_sz_idx)
+{
+	/* Supported RX buffer sizes in bytes. Configured by array index. */
+	static const int supported_sizes[16] = {
+		[0] = 32,     [1] = 64,     [2] = 96,     [3] = 128,
+		[4] = 192,    [5] = 256,    [6] = 384,    [7] = 512,
+		[8] = 768,    [9] = 1024,   [10] = 1536,  [11] = 2048,
+		[12] = 3072,  [13] = 4096,  [14] = 8192,  [15] = 16384,
+	};
+	u16 idx;
+
+	/* Scan from biggest to smallest. Choose supported size that is equal or
+	 * smaller. For smaller value HW will under-utilize posted buffers. For
+	 * bigger value HW may overrun posted buffers.
+	 */
+	idx = ARRAY_SIZE(supported_sizes);
+	while (idx > 0) {
+		idx--;
+		if (supported_sizes[idx] <= rx_buf_sz) {
+			*buf_sz_idx = idx;
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+int hinic3_set_root_ctxt(struct hinic3_hwdev *hwdev, u32 rq_depth, u32 sq_depth,
+			 int rx_buf_sz)
+{
+	struct comm_cmd_set_root_ctxt root_ctxt = {};
+	struct mgmt_msg_params msg_params = {};
+	u16 buf_sz_idx;
+	int err;
+
+	err = get_hw_rx_buf_size_idx(rx_buf_sz, &buf_sz_idx);
+	if (err)
+		return err;
+
+	root_ctxt.func_id = hinic3_global_func_id(hwdev);
+
+	root_ctxt.set_cmdq_depth = 0;
+	root_ctxt.cmdq_depth = 0;
+
+	root_ctxt.lro_en = 1;
+
+	root_ctxt.rq_depth  = ilog2(rq_depth);
+	root_ctxt.rx_buf_sz = buf_sz_idx;
+	root_ctxt.sq_depth  = ilog2(sq_depth);
+
+	mgmt_msg_params_init_default(&msg_params, &root_ctxt,
+				     sizeof(root_ctxt));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SET_VAT, &msg_params);
+	if (err || root_ctxt.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set root context, err: %d, status: 0x%x\n",
+			err, root_ctxt.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_clean_root_ctxt(struct hinic3_hwdev *hwdev)
+{
+	struct comm_cmd_set_root_ctxt root_ctxt = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	root_ctxt.func_id = hinic3_global_func_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &root_ctxt,
+				     sizeof(root_ctxt));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_SET_VAT, &msg_params);
+	if (err || root_ctxt.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set root context, err: %d, status: 0x%x\n",
+			err, root_ctxt.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+#define HINIC3_FW_VER_TYPE_MPU  1
+
+int hinic3_get_mgmt_version(struct hinic3_hwdev *hwdev, u8 *mgmt_ver,
+			    u8 version_size)
+{
+	struct comm_cmd_get_fw_version fw_ver = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	fw_ver.fw_type = HINIC3_FW_VER_TYPE_MPU;
+
+	mgmt_msg_params_init_default(&msg_params, &fw_ver, sizeof(fw_ver));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_COMM,
+				       COMM_CMD_GET_FW_VERSION, &msg_params);
+
+	if (err || fw_ver.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to get fw version, err: %d, status: 0x%x\n",
+			err, fw_ver.head.status);
+		return -EFAULT;
+	}
+
+	snprintf(mgmt_ver, version_size, "%s", fw_ver.ver);
+
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hw_comm.h

@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_HW_COMM_H_
+#define _HINIC3_HW_COMM_H_
+
+#include "hinic3_hw_intf.h"
+
+struct hinic3_hwdev;
+
+#define HINIC3_WQ_PAGE_SIZE_ORDER  8
+
+struct hinic3_interrupt_info {
+	u32 lli_set;
+	u32 interrupt_coalesc_set;
+	u16 msix_index;
+	u8  lli_credit_limit;
+	u8  lli_timer_cfg;
+	u8  pending_limit;
+	u8  coalesc_timer_cfg;
+	u8  resend_timer_cfg;
+};
+
+int hinic3_set_interrupt_cfg_direct(struct hinic3_hwdev *hwdev,
+				    const struct hinic3_interrupt_info *info);
+int hinic3_set_interrupt_cfg(struct hinic3_hwdev *hwdev,
+			     struct hinic3_interrupt_info info);
+int hinic3_func_reset(struct hinic3_hwdev *hwdev, u16 func_id, u64 reset_flag);
+
+int hinic3_get_comm_features(struct hinic3_hwdev *hwdev, u64 *s_feature,
+			     u16 size);
+int hinic3_set_comm_features(struct hinic3_hwdev *hwdev, u64 *s_feature,
+			     u16 size);
+int hinic3_get_global_attr(struct hinic3_hwdev *hwdev,
+			   struct comm_global_attr *attr);
+int hinic3_set_func_svc_used_state(struct hinic3_hwdev *hwdev, u16 svc_type,
+				   u8 state);
+int hinic3_set_dma_attr_tbl(struct hinic3_hwdev *hwdev, u8 entry_idx, u8 st,
+			    u8 at, u8 ph, u8 no_snooping, u8 tph_en);
+
+int hinic3_set_wq_page_size(struct hinic3_hwdev *hwdev, u16 func_idx,
+			    u32 page_size);
+int hinic3_set_cmdq_depth(struct hinic3_hwdev *hwdev, u16 cmdq_depth);
+int hinic3_func_rx_tx_flush(struct hinic3_hwdev *hwdev);
+int hinic3_set_bdf_ctxt(struct hinic3_hwdev *hwdev,
+			struct comm_cmd_bdf_info *bdf_info);
+void hinic3_sync_time_to_fw(struct hinic3_hwdev *hwdev);
+
+int hinic3_set_root_ctxt(struct hinic3_hwdev *hwdev, u32 rq_depth, u32 sq_depth,
+			 int rx_buf_sz);
+int hinic3_clean_root_ctxt(struct hinic3_hwdev *hwdev);
+int hinic3_get_mgmt_version(struct hinic3_hwdev *hwdev, u8 *mgmt_ver,
+			    u8 version_size);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hw_intf.h

@@ -0,0 +1,300 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_HW_INTF_H_
+#define _HINIC3_HW_INTF_H_
+
+#include <linux/bits.h>
+#include <linux/types.h>
+
+#define MGMT_MSG_CMD_OP_SET   1
+#define MGMT_MSG_CMD_OP_GET   0
+
+#define MGMT_STATUS_PF_SET_VF_ALREADY  0x4
+#define MGMT_STATUS_EXIST              0x6
+#define MGMT_STATUS_CMD_UNSUPPORTED    0xFF
+
+#define MGMT_MSG_POLLING_TIMEOUT 0
+
+struct mgmt_msg_head {
+	u8 status;
+	u8 version;
+	u8 rsvd0[6];
+};
+
+struct mgmt_msg_params {
+	const void  *buf_in;
+	u32         in_size;
+	void        *buf_out;
+	u32         expected_out_size;
+	u32         timeout_ms;
+};
+
+/* CMDQ MODULE_TYPE */
+enum mgmt_mod_type {
+	/* HW communication module */
+	MGMT_MOD_COMM   = 0,
+	/* L2NIC module */
+	MGMT_MOD_L2NIC  = 1,
+	/* Configuration module */
+	MGMT_MOD_CFGM   = 7,
+	MGMT_MOD_HILINK = 14,
+	/* hardware max module id */
+	MGMT_MOD_HW_MAX = 20,
+};
+
+static inline void mgmt_msg_params_init_default(struct mgmt_msg_params *msg_params,
+						void *inout_buf, u32 buf_size)
+{
+	msg_params->buf_in = inout_buf;
+	msg_params->buf_out = inout_buf;
+	msg_params->in_size = buf_size;
+	msg_params->expected_out_size = buf_size;
+	msg_params->timeout_ms = 0;
+}
+
+enum cfg_cmd {
+	CFG_CMD_GET_DEV_CAP = 0,
+};
+
+/* Device capabilities, defined by hw */
+struct cfg_cmd_dev_cap {
+	struct mgmt_msg_head head;
+
+	u16                  func_id;
+	u16                  rsvd1;
+
+	/* Public resources */
+	u8                   host_id;
+	u8                   ep_id;
+	u8                   er_id;
+	u8                   port_id;
+
+	u16                  host_total_func;
+	u8                   host_pf_num;
+	u8                   pf_id_start;
+	u16                  host_vf_num;
+	u16                  vf_id_start;
+	u8                   host_oq_id_mask_val;
+	u8                   timer_en;
+	u8                   host_valid_bitmap;
+	u8                   rsvd_host;
+
+	u16                  svc_cap_en;
+	u16                  max_vf;
+	u8                   flexq_en;
+	u8                   valid_cos_bitmap;
+	u8                   port_cos_valid_bitmap;
+	u8                   rsvd2[45];
+
+	/* l2nic */
+	u16                  nic_max_sq_id;
+	u16                  nic_max_rq_id;
+	u16                  nic_default_num_queues;
+
+	u8                   rsvd3[250];
+};
+
+/* COMM Commands between Driver to fw */
+enum comm_cmd {
+	/* Commands for clearing FLR and resources */
+	COMM_CMD_FUNC_RESET              = 0,
+	COMM_CMD_FEATURE_NEGO            = 1,
+	COMM_CMD_FLUSH_DOORBELL          = 2,
+	COMM_CMD_START_FLUSH             = 3,
+	COMM_CMD_GET_GLOBAL_ATTR         = 5,
+	COMM_CMD_SET_FUNC_SVC_USED_STATE = 7,
+
+	/* Driver Configuration Commands */
+	COMM_CMD_SET_CMDQ_CTXT           = 20,
+	COMM_CMD_SET_VAT                 = 21,
+	COMM_CMD_CFG_PAGESIZE            = 22,
+	COMM_CMD_CFG_MSIX_CTRL_REG       = 23,
+	COMM_CMD_SET_CEQ_CTRL_REG        = 24,
+	COMM_CMD_SET_DMA_ATTR            = 25,
+
+	/* Commands for obtaining information */
+	COMM_CMD_GET_FW_VERSION          = 60,
+	COMM_CMD_SYNC_TIME               = 62,
+	COMM_CMD_SEND_BDF_INFO           = 64,
+};
+
+struct comm_cmd_cfg_msix_ctrl_reg {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   rsvd1;
+	u16                  msix_index;
+	u8                   pending_cnt;
+	u8                   coalesce_timer_cnt;
+	u8                   resend_timer_cnt;
+	u8                   lli_timer_cnt;
+	u8                   lli_credit_cnt;
+	u8                   rsvd2[5];
+};
+
+enum comm_func_reset_bits {
+	COMM_FUNC_RESET_BIT_FLUSH        = BIT(0),
+	COMM_FUNC_RESET_BIT_MQM          = BIT(1),
+	COMM_FUNC_RESET_BIT_SMF          = BIT(2),
+	COMM_FUNC_RESET_BIT_PF_BW_CFG    = BIT(3),
+
+	COMM_FUNC_RESET_BIT_COMM         = BIT(10),
+	/* clear mbox and aeq, The COMM_FUNC_RESET_BIT_COMM bit must be set */
+	COMM_FUNC_RESET_BIT_COMM_MGMT_CH = BIT(11),
+	/* clear cmdq and ceq, The COMM_FUNC_RESET_BIT_COMM bit must be set */
+	COMM_FUNC_RESET_BIT_COMM_CMD_CH  = BIT(12),
+	COMM_FUNC_RESET_BIT_NIC          = BIT(13),
+};
+
+#define COMM_FUNC_RESET_FLAG \
+	(COMM_FUNC_RESET_BIT_COMM | COMM_FUNC_RESET_BIT_COMM_CMD_CH | \
+	 COMM_FUNC_RESET_BIT_FLUSH | COMM_FUNC_RESET_BIT_MQM | \
+	 COMM_FUNC_RESET_BIT_SMF | COMM_FUNC_RESET_BIT_PF_BW_CFG)
+
+struct comm_cmd_func_reset {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u16                  rsvd1[3];
+	u64                  reset_flag;
+};
+
+#define COMM_MAX_FEATURE_QWORD  4
+struct comm_cmd_feature_nego {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   rsvd;
+	u64                  s_feature[COMM_MAX_FEATURE_QWORD];
+};
+
+struct comm_global_attr {
+	u8  max_host_num;
+	u8  max_pf_num;
+	u16 vf_id_start;
+	/* for api cmd to mgmt cpu */
+	u8  mgmt_host_node_id;
+	u8  cmdq_num;
+	u8  rsvd1[34];
+};
+
+struct comm_cmd_get_glb_attr {
+	struct mgmt_msg_head    head;
+	struct comm_global_attr attr;
+};
+
+enum comm_func_svc_type {
+	COMM_FUNC_SVC_T_COMM = 0,
+	COMM_FUNC_SVC_T_NIC  = 1,
+};
+
+struct comm_cmd_set_func_svc_used_state {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u16                  svc_type;
+	u8                   used_state;
+	u8                   rsvd[35];
+};
+
+struct comm_cmd_set_dma_attr {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u8                   entry_idx;
+	u8                   st;
+	u8                   at;
+	u8                   ph;
+	u8                   no_snooping;
+	u8                   tph_en;
+	u32                  resv1;
+};
+
+struct comm_cmd_set_ceq_ctrl_reg {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u16                  q_id;
+	u32                  ctrl0;
+	u32                  ctrl1;
+	u32                  rsvd1;
+};
+
+struct comm_cmd_cfg_wq_page_size {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u8                   opcode;
+	/* real_size=4KB*2^page_size, range(0~20) must be checked by driver */
+	u8                   page_size;
+	u32                  rsvd1;
+};
+
+struct comm_cmd_set_root_ctxt {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u8                   set_cmdq_depth;
+	u8                   cmdq_depth;
+	u16                  rx_buf_sz;
+	u8                   lro_en;
+	u8                   rsvd1;
+	u16                  sq_depth;
+	u16                  rq_depth;
+	u64                  rsvd2;
+};
+
+struct comm_cmdq_ctxt_info {
+	__le64 curr_wqe_page_pfn;
+	__le64 wq_block_pfn;
+};
+
+struct comm_cmd_set_cmdq_ctxt {
+	struct mgmt_msg_head       head;
+	u16                        func_id;
+	u8                         cmdq_id;
+	u8                         rsvd1[5];
+	struct comm_cmdq_ctxt_info ctxt;
+};
+
+struct comm_cmd_clear_resource {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	u16                  rsvd1[3];
+};
+
+struct comm_cmd_sync_time {
+	struct mgmt_msg_head head;
+
+	u64                  mstime;
+	u64                  rsvd1;
+};
+
+struct comm_cmd_bdf_info {
+	struct mgmt_msg_head head;
+
+	u16                  function_idx;
+	u8                   rsvd1[2];
+	u8                   bus;
+	u8                   device;
+	u8                   function;
+	u8                   rsvd2[5];
+};
+
+#define COMM_FW_VERSION_LEN       16
+#define COMM_FW_COMPILE_TIME_LEN  20
+struct comm_cmd_get_fw_version {
+	struct mgmt_msg_head head;
+
+	u16                  fw_type;
+	u16                  rsvd1;
+	u8                   ver[COMM_FW_VERSION_LEN];
+	u8                   time[COMM_FW_COMPILE_TIME_LEN];
+};
+
+/* Services supported by HW. HW uses these values when delivering events.
+ * HW supports multiple services that are not yet supported by driver
+ * (e.g. RoCE).
+ */
+enum hinic3_service_type {
+	HINIC3_SERVICE_T_NIC = 0,
+	/* MAX is only used by SW for array sizes. */
+	HINIC3_SERVICE_T_MAX = 1,
+};
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hwdev.c

@@ -0,0 +1,657 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include "hinic3_cmdq.h"
+#include "hinic3_csr.h"
+#include "hinic3_eqs.h"
+#include "hinic3_hw_comm.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+#include "hinic3_mgmt.h"
+
+#define HINIC3_PCIE_SNOOP        0
+#define HINIC3_PCIE_TPH_DISABLE  0
+
+#define HINIC3_SYNFW_TIME_PERIOD  (60 * 60 * 1000)
+
+#define HINIC3_DMA_ATTR_INDIR_IDX_MASK          GENMASK(9, 0)
+#define HINIC3_DMA_ATTR_INDIR_IDX_SET(val, member)  \
+	FIELD_PREP(HINIC3_DMA_ATTR_INDIR_##member##_MASK, val)
+
+#define HINIC3_DMA_ATTR_ENTRY_ST_MASK           GENMASK(7, 0)
+#define HINIC3_DMA_ATTR_ENTRY_AT_MASK           GENMASK(9, 8)
+#define HINIC3_DMA_ATTR_ENTRY_PH_MASK           GENMASK(11, 10)
+#define HINIC3_DMA_ATTR_ENTRY_NO_SNOOPING_MASK  BIT(12)
+#define HINIC3_DMA_ATTR_ENTRY_TPH_EN_MASK       BIT(13)
+#define HINIC3_DMA_ATTR_ENTRY_SET(val, member)  \
+	FIELD_PREP(HINIC3_DMA_ATTR_ENTRY_##member##_MASK, val)
+
+#define HINIC3_PCIE_ST_DISABLE       0
+#define HINIC3_PCIE_AT_DISABLE       0
+#define HINIC3_PCIE_PH_DISABLE       0
+#define HINIC3_PCIE_MSIX_ATTR_ENTRY  0
+
+#define HINIC3_CHIP_PRESENT          1
+#define HINIC3_CHIP_ABSENT           0
+
+#define HINIC3_DEFAULT_EQ_MSIX_PENDING_LIMIT      0
+#define HINIC3_DEFAULT_EQ_MSIX_COALESC_TIMER_CFG  0xFF
+#define HINIC3_DEFAULT_EQ_MSIX_RESEND_TIMER_CFG   7
+
+#define HINIC3_HWDEV_WQ_NAME    "hinic3_hardware"
+#define HINIC3_WQ_MAX_REQ       10
+
+enum hinic3_hwdev_init_state {
+	HINIC3_HWDEV_MGMT_INITED = 1,
+	HINIC3_HWDEV_MBOX_INITED = 2,
+	HINIC3_HWDEV_CMDQ_INITED = 3,
+};
+
+static int hinic3_comm_aeqs_init(struct hinic3_hwdev *hwdev)
+{
+	struct msix_entry aeq_msix_entries[HINIC3_MAX_AEQS];
+	u16 num_aeqs, resp_num_irq, i;
+	int err;
+
+	num_aeqs = hwdev->hwif->attr.num_aeqs;
+	if (num_aeqs > HINIC3_MAX_AEQS) {
+		dev_warn(hwdev->dev, "Adjust aeq num to %d\n",
+			 HINIC3_MAX_AEQS);
+		num_aeqs = HINIC3_MAX_AEQS;
+	}
+	err = hinic3_alloc_irqs(hwdev, num_aeqs, aeq_msix_entries,
+				&resp_num_irq);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to alloc aeq irqs, num_aeqs: %u\n",
+			num_aeqs);
+		return err;
+	}
+
+	if (resp_num_irq < num_aeqs) {
+		dev_warn(hwdev->dev, "Adjust aeq num to %u\n",
+			 resp_num_irq);
+		num_aeqs = resp_num_irq;
+	}
+
+	err = hinic3_aeqs_init(hwdev, num_aeqs, aeq_msix_entries);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init aeqs\n");
+		goto err_free_irqs;
+	}
+
+	return 0;
+
+err_free_irqs:
+	for (i = 0; i < num_aeqs; i++)
+		hinic3_free_irq(hwdev, aeq_msix_entries[i].vector);
+
+	return err;
+}
+
+static int hinic3_comm_ceqs_init(struct hinic3_hwdev *hwdev)
+{
+	struct msix_entry ceq_msix_entries[HINIC3_MAX_CEQS];
+	u16 num_ceqs, resp_num_irq, i;
+	int err;
+
+	num_ceqs = hwdev->hwif->attr.num_ceqs;
+	if (num_ceqs > HINIC3_MAX_CEQS) {
+		dev_warn(hwdev->dev, "Adjust ceq num to %d\n",
+			 HINIC3_MAX_CEQS);
+		num_ceqs = HINIC3_MAX_CEQS;
+	}
+
+	err = hinic3_alloc_irqs(hwdev, num_ceqs, ceq_msix_entries,
+				&resp_num_irq);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to alloc ceq irqs, num_ceqs: %u\n",
+			num_ceqs);
+		return err;
+	}
+
+	if (resp_num_irq < num_ceqs) {
+		dev_warn(hwdev->dev, "Adjust ceq num to %u\n",
+			 resp_num_irq);
+		num_ceqs = resp_num_irq;
+	}
+
+	err = hinic3_ceqs_init(hwdev, num_ceqs, ceq_msix_entries);
+	if (err) {
+		dev_err(hwdev->dev,
+			"Failed to init ceqs, err:%d\n", err);
+		goto err_free_irqs;
+	}
+
+	return 0;
+
+err_free_irqs:
+	for (i = 0; i < num_ceqs; i++)
+		hinic3_free_irq(hwdev, ceq_msix_entries[i].vector);
+
+	return err;
+}
+
+static int hinic3_comm_mbox_init(struct hinic3_hwdev *hwdev)
+{
+	int err;
+
+	err = hinic3_init_mbox(hwdev);
+	if (err)
+		return err;
+
+	hinic3_aeq_register_cb(hwdev, HINIC3_MBX_FROM_FUNC,
+			       hinic3_mbox_func_aeqe_handler);
+	hinic3_aeq_register_cb(hwdev, HINIC3_MSG_FROM_FW,
+			       hinic3_mgmt_msg_aeqe_handler);
+
+	set_bit(HINIC3_HWDEV_MBOX_INITED, &hwdev->func_state);
+
+	return 0;
+}
+
+static void hinic3_comm_mbox_free(struct hinic3_hwdev *hwdev)
+{
+	spin_lock_bh(&hwdev->channel_lock);
+	clear_bit(HINIC3_HWDEV_MBOX_INITED, &hwdev->func_state);
+	spin_unlock_bh(&hwdev->channel_lock);
+	hinic3_aeq_unregister_cb(hwdev, HINIC3_MBX_FROM_FUNC);
+	hinic3_aeq_unregister_cb(hwdev, HINIC3_MSG_FROM_FW);
+	hinic3_free_mbox(hwdev);
+}
+
+static int init_aeqs_msix_attr(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_aeqs *aeqs = hwdev->aeqs;
+	struct hinic3_interrupt_info info = {};
+	struct hinic3_eq *eq;
+	u16 q_id;
+	int err;
+
+	info.interrupt_coalesc_set = 1;
+	info.pending_limit = HINIC3_DEFAULT_EQ_MSIX_PENDING_LIMIT;
+	info.coalesc_timer_cfg = HINIC3_DEFAULT_EQ_MSIX_COALESC_TIMER_CFG;
+	info.resend_timer_cfg = HINIC3_DEFAULT_EQ_MSIX_RESEND_TIMER_CFG;
+
+	for (q_id = 0; q_id < aeqs->num_aeqs; q_id++) {
+		eq = &aeqs->aeq[q_id];
+		info.msix_index = eq->msix_entry_idx;
+		err = hinic3_set_interrupt_cfg_direct(hwdev, &info);
+		if (err) {
+			dev_err(hwdev->dev, "Set msix attr for aeq %d failed\n",
+				q_id);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+static int init_ceqs_msix_attr(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_ceqs *ceqs = hwdev->ceqs;
+	struct hinic3_interrupt_info info = {};
+	struct hinic3_eq *eq;
+	u16 q_id;
+	int err;
+
+	info.interrupt_coalesc_set = 1;
+	info.pending_limit = HINIC3_DEFAULT_EQ_MSIX_PENDING_LIMIT;
+	info.coalesc_timer_cfg = HINIC3_DEFAULT_EQ_MSIX_COALESC_TIMER_CFG;
+	info.resend_timer_cfg = HINIC3_DEFAULT_EQ_MSIX_RESEND_TIMER_CFG;
+
+	for (q_id = 0; q_id < ceqs->num_ceqs; q_id++) {
+		eq = &ceqs->ceq[q_id];
+		info.msix_index = eq->msix_entry_idx;
+		err = hinic3_set_interrupt_cfg(hwdev, info);
+		if (err) {
+			dev_err(hwdev->dev, "Set msix attr for ceq %u failed\n",
+				q_id);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+static int hinic3_comm_pf_to_mgmt_init(struct hinic3_hwdev *hwdev)
+{
+	int err;
+
+	if (HINIC3_IS_VF(hwdev))
+		return 0;
+
+	err = hinic3_pf_to_mgmt_init(hwdev);
+	if (err)
+		return err;
+
+	set_bit(HINIC3_HWDEV_MGMT_INITED, &hwdev->func_state);
+
+	return 0;
+}
+
+static void hinic3_comm_pf_to_mgmt_free(struct hinic3_hwdev *hwdev)
+{
+	if (HINIC3_IS_VF(hwdev))
+		return;
+
+	spin_lock_bh(&hwdev->channel_lock);
+	clear_bit(HINIC3_HWDEV_MGMT_INITED, &hwdev->func_state);
+	spin_unlock_bh(&hwdev->channel_lock);
+
+	hinic3_aeq_unregister_cb(hwdev, HINIC3_MSG_FROM_FW);
+
+	hinic3_pf_to_mgmt_free(hwdev);
+}
+
+static int init_basic_mgmt_channel(struct hinic3_hwdev *hwdev)
+{
+	int err;
+
+	err = hinic3_comm_aeqs_init(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init async event queues\n");
+		return err;
+	}
+
+	err = hinic3_comm_mbox_init(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init mailbox\n");
+		goto err_free_comm_aeqs;
+	}
+
+	err = init_aeqs_msix_attr(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init aeqs msix attr\n");
+		goto err_free_comm_mbox;
+	}
+
+	return 0;
+
+err_free_comm_mbox:
+	hinic3_comm_mbox_free(hwdev);
+err_free_comm_aeqs:
+	hinic3_aeqs_free(hwdev);
+
+	return err;
+}
+
+static void free_base_mgmt_channel(struct hinic3_hwdev *hwdev)
+{
+	hinic3_comm_mbox_free(hwdev);
+	hinic3_aeqs_free(hwdev);
+}
+
+static int dma_attr_table_init(struct hinic3_hwdev *hwdev)
+{
+	u32 addr, val, dst_attr;
+
+	/* Indirect access, set entry_idx first */
+	addr = HINIC3_CSR_DMA_ATTR_INDIR_IDX_ADDR;
+	val = hinic3_hwif_read_reg(hwdev->hwif, addr);
+	val &= ~HINIC3_DMA_ATTR_ENTRY_AT_MASK;
+	val |= HINIC3_DMA_ATTR_INDIR_IDX_SET(HINIC3_PCIE_MSIX_ATTR_ENTRY, IDX);
+	hinic3_hwif_write_reg(hwdev->hwif, addr, val);
+
+	addr = HINIC3_CSR_DMA_ATTR_TBL_ADDR;
+	val = hinic3_hwif_read_reg(hwdev->hwif, addr);
+
+	dst_attr = HINIC3_DMA_ATTR_ENTRY_SET(HINIC3_PCIE_ST_DISABLE, ST) |
+		   HINIC3_DMA_ATTR_ENTRY_SET(HINIC3_PCIE_AT_DISABLE, AT) |
+		   HINIC3_DMA_ATTR_ENTRY_SET(HINIC3_PCIE_PH_DISABLE, PH) |
+		   HINIC3_DMA_ATTR_ENTRY_SET(HINIC3_PCIE_SNOOP, NO_SNOOPING) |
+		   HINIC3_DMA_ATTR_ENTRY_SET(HINIC3_PCIE_TPH_DISABLE, TPH_EN);
+	if (val == dst_attr)
+		return 0;
+
+	return hinic3_set_dma_attr_tbl(hwdev,
+				       HINIC3_PCIE_MSIX_ATTR_ENTRY,
+				       HINIC3_PCIE_ST_DISABLE,
+				       HINIC3_PCIE_AT_DISABLE,
+				       HINIC3_PCIE_PH_DISABLE,
+				       HINIC3_PCIE_SNOOP,
+				       HINIC3_PCIE_TPH_DISABLE);
+}
+
+static int init_basic_attributes(struct hinic3_hwdev *hwdev)
+{
+	struct comm_global_attr glb_attr;
+	int err;
+
+	err = hinic3_func_reset(hwdev, hinic3_global_func_id(hwdev),
+				COMM_FUNC_RESET_FLAG);
+	if (err)
+		return err;
+
+	err = hinic3_get_comm_features(hwdev, hwdev->features,
+				       COMM_MAX_FEATURE_QWORD);
+	if (err)
+		return err;
+
+	dev_dbg(hwdev->dev, "Comm hw features: 0x%llx\n", hwdev->features[0]);
+
+	err = hinic3_get_global_attr(hwdev, &glb_attr);
+	if (err)
+		return err;
+
+	err = hinic3_set_func_svc_used_state(hwdev, COMM_FUNC_SVC_T_COMM, 1);
+	if (err)
+		return err;
+
+	err = dma_attr_table_init(hwdev);
+	if (err)
+		return err;
+
+	hwdev->max_cmdq = min(glb_attr.cmdq_num, HINIC3_MAX_CMDQ_TYPES);
+	dev_dbg(hwdev->dev,
+		"global attribute: max_host: 0x%x, max_pf: 0x%x, vf_id_start: 0x%x, mgmt node id: 0x%x, cmdq_num: 0x%x\n",
+		glb_attr.max_host_num, glb_attr.max_pf_num,
+		glb_attr.vf_id_start, glb_attr.mgmt_host_node_id,
+		glb_attr.cmdq_num);
+
+	return 0;
+}
+
+static int hinic3_comm_cmdqs_init(struct hinic3_hwdev *hwdev)
+{
+	int err;
+
+	err = hinic3_cmdqs_init(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init cmd queues\n");
+		return err;
+	}
+
+	hinic3_ceq_register_cb(hwdev, HINIC3_CMDQ, hinic3_cmdq_ceq_handler);
+
+	err = hinic3_set_cmdq_depth(hwdev, CMDQ_DEPTH);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set cmdq depth\n");
+		goto err_free_cmdqs;
+	}
+
+	set_bit(HINIC3_HWDEV_CMDQ_INITED, &hwdev->func_state);
+
+	return 0;
+
+err_free_cmdqs:
+	hinic3_cmdqs_free(hwdev);
+
+	return err;
+}
+
+static void hinic3_comm_cmdqs_free(struct hinic3_hwdev *hwdev)
+{
+	spin_lock_bh(&hwdev->channel_lock);
+	clear_bit(HINIC3_HWDEV_CMDQ_INITED, &hwdev->func_state);
+	spin_unlock_bh(&hwdev->channel_lock);
+
+	hinic3_ceq_unregister_cb(hwdev, HINIC3_CMDQ);
+	hinic3_cmdqs_free(hwdev);
+}
+
+static int init_cmdqs_channel(struct hinic3_hwdev *hwdev)
+{
+	int err;
+
+	err = hinic3_comm_ceqs_init(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init completion event queues\n");
+		return err;
+	}
+
+	err = init_ceqs_msix_attr(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init ceqs msix attr\n");
+		goto err_free_ceqs;
+	}
+
+	hwdev->wq_page_size = HINIC3_MIN_PAGE_SIZE << HINIC3_WQ_PAGE_SIZE_ORDER;
+	err = hinic3_set_wq_page_size(hwdev, hinic3_global_func_id(hwdev),
+				      hwdev->wq_page_size);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set wq page size\n");
+		goto err_free_ceqs;
+	}
+
+	err = hinic3_comm_cmdqs_init(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init cmd queues\n");
+		goto err_reset_wq_page_size;
+	}
+
+	return 0;
+
+err_reset_wq_page_size:
+	hinic3_set_wq_page_size(hwdev, hinic3_global_func_id(hwdev),
+				HINIC3_MIN_PAGE_SIZE);
+err_free_ceqs:
+	hinic3_ceqs_free(hwdev);
+
+	return err;
+}
+
+static void hinic3_free_cmdqs_channel(struct hinic3_hwdev *hwdev)
+{
+	hinic3_comm_cmdqs_free(hwdev);
+
+	hinic3_set_wq_page_size(hwdev, hinic3_global_func_id(hwdev),
+				HINIC3_MIN_PAGE_SIZE);
+
+	hinic3_ceqs_free(hwdev);
+}
+
+static int hinic3_init_comm_ch(struct hinic3_hwdev *hwdev)
+{
+	int err;
+
+	err = init_basic_mgmt_channel(hwdev);
+	if (err)
+		return err;
+
+	err = hinic3_comm_pf_to_mgmt_init(hwdev);
+	if (err)
+		goto err_free_basic_mgmt_ch;
+
+	err = init_basic_attributes(hwdev);
+	if (err)
+		goto err_free_comm_pf_to_mgmt;
+
+	err = init_cmdqs_channel(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init cmdq channel\n");
+		goto err_clear_func_svc_used_state;
+	}
+
+	hinic3_set_pf_status(hwdev->hwif, HINIC3_PF_STATUS_ACTIVE_FLAG);
+
+	return 0;
+
+err_clear_func_svc_used_state:
+	hinic3_set_func_svc_used_state(hwdev, COMM_FUNC_SVC_T_COMM, 0);
+err_free_comm_pf_to_mgmt:
+	hinic3_comm_pf_to_mgmt_free(hwdev);
+err_free_basic_mgmt_ch:
+	free_base_mgmt_channel(hwdev);
+
+	return err;
+}
+
+static void hinic3_uninit_comm_ch(struct hinic3_hwdev *hwdev)
+{
+	hinic3_set_pf_status(hwdev->hwif, HINIC3_PF_STATUS_INIT);
+	hinic3_free_cmdqs_channel(hwdev);
+	hinic3_set_func_svc_used_state(hwdev, COMM_FUNC_SVC_T_COMM, 0);
+	hinic3_comm_pf_to_mgmt_free(hwdev);
+	free_base_mgmt_channel(hwdev);
+}
+
+static void hinic3_auto_sync_time_work(struct work_struct *work)
+{
+	struct delayed_work *delay = to_delayed_work(work);
+	struct hinic3_hwdev *hwdev;
+
+	hwdev = container_of(delay, struct hinic3_hwdev, sync_time_task);
+
+	hinic3_sync_time_to_fw(hwdev);
+
+	queue_delayed_work(hwdev->workq, &hwdev->sync_time_task,
+			   msecs_to_jiffies(HINIC3_SYNFW_TIME_PERIOD));
+}
+
+static void hinic3_init_ppf_work(struct hinic3_hwdev *hwdev)
+{
+	if (hinic3_ppf_idx(hwdev) != hinic3_global_func_id(hwdev))
+		return;
+
+	INIT_DELAYED_WORK(&hwdev->sync_time_task, hinic3_auto_sync_time_work);
+	queue_delayed_work(hwdev->workq, &hwdev->sync_time_task,
+			   msecs_to_jiffies(HINIC3_SYNFW_TIME_PERIOD));
+}
+
+static void hinic3_free_ppf_work(struct hinic3_hwdev *hwdev)
+{
+	if (hinic3_ppf_idx(hwdev) != hinic3_global_func_id(hwdev))
+		return;
+
+	disable_delayed_work_sync(&hwdev->sync_time_task);
+}
+
+static DEFINE_IDA(hinic3_adev_ida);
+
+static int hinic3_adev_idx_alloc(void)
+{
+	return ida_alloc(&hinic3_adev_ida, GFP_KERNEL);
+}
+
+static void hinic3_adev_idx_free(int id)
+{
+	ida_free(&hinic3_adev_ida, id);
+}
+
+int hinic3_init_hwdev(struct pci_dev *pdev)
+{
+	struct hinic3_pcidev *pci_adapter = pci_get_drvdata(pdev);
+	struct hinic3_hwdev *hwdev;
+	int err;
+
+	hwdev = kzalloc_obj(*hwdev);
+	if (!hwdev)
+		return -ENOMEM;
+
+	pci_adapter->hwdev = hwdev;
+	hwdev->adapter = pci_adapter;
+	hwdev->pdev = pci_adapter->pdev;
+	hwdev->dev = &pci_adapter->pdev->dev;
+	hwdev->func_state = 0;
+	hwdev->dev_id = hinic3_adev_idx_alloc();
+	spin_lock_init(&hwdev->channel_lock);
+
+	err = hinic3_init_hwif(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init hwif\n");
+		goto err_free_hwdev;
+	}
+	hwdev->chip_present_flag = HINIC3_CHIP_PRESENT;
+
+	hwdev->workq = alloc_workqueue(HINIC3_HWDEV_WQ_NAME, WQ_MEM_RECLAIM | WQ_PERCPU,
+				       HINIC3_WQ_MAX_REQ);
+	if (!hwdev->workq) {
+		dev_err(hwdev->dev, "Failed to alloc hardware workq\n");
+		err = -ENOMEM;
+		goto err_free_hwif;
+	}
+
+	err = hinic3_init_cfg_mgmt(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init config mgmt\n");
+		goto err_destroy_workqueue;
+	}
+
+	err = hinic3_init_comm_ch(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init communication channel\n");
+		goto err_free_cfg_mgmt;
+	}
+
+	err = hinic3_init_capability(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init capability\n");
+		goto err_uninit_comm_ch;
+	}
+
+	hinic3_init_ppf_work(hwdev);
+
+	err = hinic3_set_comm_features(hwdev, hwdev->features,
+				       COMM_MAX_FEATURE_QWORD);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set comm features\n");
+		goto err_free_ppf_work;
+	}
+
+	return 0;
+
+err_free_ppf_work:
+	hinic3_free_ppf_work(hwdev);
+err_uninit_comm_ch:
+	hinic3_uninit_comm_ch(hwdev);
+err_free_cfg_mgmt:
+	hinic3_free_cfg_mgmt(hwdev);
+err_destroy_workqueue:
+	destroy_workqueue(hwdev->workq);
+err_free_hwif:
+	hinic3_free_hwif(hwdev);
+err_free_hwdev:
+	pci_adapter->hwdev = NULL;
+	hinic3_adev_idx_free(hwdev->dev_id);
+	kfree(hwdev);
+
+	return err;
+}
+
+void hinic3_free_hwdev(struct hinic3_hwdev *hwdev)
+{
+	u64 drv_features[COMM_MAX_FEATURE_QWORD] = {};
+
+	hinic3_set_comm_features(hwdev, drv_features, COMM_MAX_FEATURE_QWORD);
+	hinic3_free_ppf_work(hwdev);
+	hinic3_func_rx_tx_flush(hwdev);
+	hinic3_uninit_comm_ch(hwdev);
+	hinic3_free_cfg_mgmt(hwdev);
+	destroy_workqueue(hwdev->workq);
+	hinic3_free_hwif(hwdev);
+	hinic3_adev_idx_free(hwdev->dev_id);
+	kfree(hwdev);
+}
+
+void hinic3_set_api_stop(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_recv_msg *recv_resp_msg;
+	struct hinic3_mbox *mbox;
+
+	hwdev->chip_present_flag = HINIC3_CHIP_ABSENT;
+	spin_lock_bh(&hwdev->channel_lock);
+	if (HINIC3_IS_PF(hwdev) &&
+	    test_bit(HINIC3_HWDEV_MGMT_INITED, &hwdev->func_state)) {
+		recv_resp_msg = &hwdev->pf_to_mgmt->recv_resp_msg_from_mgmt;
+		spin_lock_bh(&hwdev->pf_to_mgmt->sync_event_lock);
+		if (hwdev->pf_to_mgmt->event_flag == COMM_SEND_EVENT_START) {
+			complete(&recv_resp_msg->recv_done);
+			hwdev->pf_to_mgmt->event_flag = COMM_SEND_EVENT_TIMEOUT;
+		}
+		spin_unlock_bh(&hwdev->pf_to_mgmt->sync_event_lock);
+	}
+
+	if (test_bit(HINIC3_HWDEV_MBOX_INITED, &hwdev->func_state)) {
+		mbox = hwdev->mbox;
+		spin_lock(&mbox->mbox_lock);
+		if (mbox->event_flag == MBOX_EVENT_START)
+			mbox->event_flag = MBOX_EVENT_TIMEOUT;
+		spin_unlock(&mbox->mbox_lock);
+	}
+
+	if (test_bit(HINIC3_HWDEV_CMDQ_INITED, &hwdev->func_state))
+		hinic3_cmdq_flush_sync_cmd(hwdev);
+
+	spin_unlock_bh(&hwdev->channel_lock);
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hwdev.h

@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_HWDEV_H_
+#define _HINIC3_HWDEV_H_
+
+#include <linux/auxiliary_bus.h>
+#include <linux/pci.h>
+
+#include "hinic3_hw_intf.h"
+
+struct hinic3_cmdqs;
+struct hinic3_hwif;
+
+enum hinic3_event_service_type {
+	HINIC3_EVENT_SRV_COMM = 0,
+	HINIC3_EVENT_SRV_NIC  = 1
+};
+
+enum hinic3_comm_event_type {
+	HINIC3_COMM_EVENT_PCIE_LINK_DOWN = 0,
+	HINIC3_COMM_EVENT_HEART_LOST = 1,
+	HINIC3_COMM_EVENT_FAULT = 2,
+	HINIC3_COMM_EVENT_SRIOV_STATE_CHANGE = 3,
+	HINIC3_COMM_EVENT_CARD_REMOVE = 4,
+	HINIC3_COMM_EVENT_MGMT_WATCHDOG = 5,
+};
+
+enum hinic3_fault_err_level {
+	HINIC3_FAULT_LEVEL_SERIOUS_FLR = 3,
+};
+
+enum hinic3_fault_source_type {
+	HINIC3_FAULT_SRC_HW_PHY_FAULT = 9,
+	HINIC3_FAULT_SRC_TX_TIMEOUT   = 22,
+};
+
+#define HINIC3_SRV_EVENT_TYPE(svc, type)    (((svc) << 16) | (type))
+
+/* driver-specific data of pci_dev */
+struct hinic3_pcidev {
+	struct pci_dev       *pdev;
+	struct hinic3_hwdev  *hwdev;
+	/* Auxiliary devices */
+	struct hinic3_adev   *hadev[HINIC3_SERVICE_T_MAX];
+
+	void __iomem         *cfg_reg_base;
+	void __iomem         *intr_reg_base;
+	void __iomem         *mgmt_reg_base;
+	void __iomem         *db_base;
+	u64                  db_dwqe_len;
+	u64                  db_base_phy;
+
+	/* lock for attach/detach uld */
+	struct mutex         pdev_mutex;
+	unsigned long        state;
+};
+
+struct hinic3_hwdev {
+	struct hinic3_pcidev        *adapter;
+	struct pci_dev              *pdev;
+	struct device               *dev;
+	int                         dev_id;
+	struct hinic3_hwif          *hwif;
+	struct hinic3_cfg_mgmt_info *cfg_mgmt;
+	struct hinic3_aeqs          *aeqs;
+	struct hinic3_ceqs          *ceqs;
+	struct hinic3_mbox          *mbox;
+	struct hinic3_cmdqs         *cmdqs;
+	struct delayed_work         sync_time_task;
+	struct workqueue_struct     *workq;
+	struct hinic3_msg_pf_to_mgmt *pf_to_mgmt;
+	/* protect channel init and uninit */
+	spinlock_t                  channel_lock;
+	u64                         features[COMM_MAX_FEATURE_QWORD];
+	u32                         wq_page_size;
+	u8                          max_cmdq;
+	ulong                       func_state;
+	int                         chip_present_flag;
+};
+
+struct hinic3_event_info {
+	/* enum hinic3_event_service_type */
+	u16 service;
+	u16 type;
+	u8  event_data[104];
+};
+
+struct hinic3_adev {
+	struct auxiliary_device  adev;
+	struct hinic3_hwdev      *hwdev;
+	enum hinic3_service_type svc_type;
+
+	void (*event)(struct auxiliary_device *adev,
+		      struct hinic3_event_info *event);
+};
+
+int hinic3_init_hwdev(struct pci_dev *pdev);
+void hinic3_free_hwdev(struct hinic3_hwdev *hwdev);
+
+void hinic3_set_api_stop(struct hinic3_hwdev *hwdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hwif.c

@@ -0,0 +1,543 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/bitfield.h>
+#include <linux/device.h>
+#include <linux/io.h>
+
+#include "hinic3_common.h"
+#include "hinic3_csr.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+
+#define HINIC3_HWIF_READY_TIMEOUT          10000
+#define HINIC3_DB_AND_OUTBOUND_EN_TIMEOUT  60000
+#define HINIC3_PCIE_LINK_DOWN              0xFFFFFFFF
+
+/* config BAR4/5 4MB, DB & DWQE both 2MB */
+#define HINIC3_DB_DWQE_SIZE    0x00400000
+
+/* db/dwqe page size: 4K */
+#define HINIC3_DB_PAGE_SIZE    0x00001000
+#define HINIC3_DWQE_OFFSET     0x00000800
+#define HINIC3_DB_MAX_AREAS    (HINIC3_DB_DWQE_SIZE / HINIC3_DB_PAGE_SIZE)
+
+#define HINIC3_MAX_MSIX_ENTRY  2048
+
+#define HINIC3_AF0_FUNC_GLOBAL_IDX_MASK  GENMASK(11, 0)
+#define HINIC3_AF0_P2P_IDX_MASK          GENMASK(16, 12)
+#define HINIC3_AF0_PCI_INTF_IDX_MASK     GENMASK(19, 17)
+#define HINIC3_AF0_FUNC_TYPE_MASK        BIT(28)
+#define HINIC3_AF0_GET(val, member) \
+	FIELD_GET(HINIC3_AF0_##member##_MASK, val)
+
+#define HINIC3_AF1_PPF_IDX_MASK           GENMASK(5, 0)
+#define HINIC3_AF1_AEQS_PER_FUNC_MASK     GENMASK(9, 8)
+#define HINIC3_AF1_MGMT_INIT_STATUS_MASK  BIT(30)
+#define HINIC3_AF1_GET(val, member) \
+	FIELD_GET(HINIC3_AF1_##member##_MASK, val)
+
+#define HINIC3_AF2_CEQS_PER_FUNC_MASK      GENMASK(8, 0)
+#define HINIC3_AF2_IRQS_PER_FUNC_MASK      GENMASK(26, 16)
+#define HINIC3_AF2_GET(val, member) \
+	FIELD_GET(HINIC3_AF2_##member##_MASK, val)
+
+#define HINIC3_AF3_GLOBAL_VF_ID_OF_PF_MASK  GENMASK(27, 16)
+#define HINIC3_AF3_GET(val, member) \
+	FIELD_GET(HINIC3_AF3_##member##_MASK, val)
+
+#define HINIC3_AF4_DOORBELL_CTRL_MASK  BIT(0)
+#define HINIC3_AF4_GET(val, member) \
+	FIELD_GET(HINIC3_AF4_##member##_MASK, val)
+#define HINIC3_AF4_SET(val, member) \
+	FIELD_PREP(HINIC3_AF4_##member##_MASK, val)
+
+#define HINIC3_AF5_OUTBOUND_CTRL_MASK  BIT(0)
+#define HINIC3_AF5_GET(val, member) \
+	FIELD_GET(HINIC3_AF5_##member##_MASK, val)
+
+#define HINIC3_AF6_PF_STATUS_MASK     GENMASK(15, 0)
+#define HINIC3_AF6_FUNC_MAX_SQ_MASK   GENMASK(31, 23)
+#define HINIC3_AF6_MSIX_FLEX_EN_MASK  BIT(22)
+#define HINIC3_AF6_SET(val, member) \
+	FIELD_PREP(HINIC3_AF6_##member##_MASK, val)
+#define HINIC3_AF6_GET(val, member) \
+	FIELD_GET(HINIC3_AF6_##member##_MASK, val)
+
+#define HINIC3_PPF_ELECTION_IDX_MASK  GENMASK(5, 0)
+#define HINIC3_PPF_ELECTION_SET(val, member) \
+	FIELD_PREP(HINIC3_PPF_ELECTION_##member##_MASK, val)
+#define HINIC3_PPF_ELECTION_GET(val, member) \
+	FIELD_GET(HINIC3_PPF_ELECTION_##member##_MASK, val)
+
+#define HINIC3_GET_REG_FLAG(reg)  ((reg) & (~(HINIC3_REGS_FLAG_MASK)))
+#define HINIC3_GET_REG_ADDR(reg)  ((reg) & (HINIC3_REGS_FLAG_MASK))
+
+static void __iomem *hinic3_reg_addr(struct hinic3_hwif *hwif, u32 reg)
+{
+	void __iomem *addr;
+
+	if (HINIC3_GET_REG_FLAG(reg) == HINIC3_MGMT_REGS_FLAG)
+		addr = hwif->mgmt_regs_base + HINIC3_GET_REG_ADDR(reg);
+	else
+		addr = hwif->cfg_regs_base + HINIC3_GET_REG_ADDR(reg);
+
+	return addr;
+}
+
+u32 hinic3_hwif_read_reg(struct hinic3_hwif *hwif, u32 reg)
+{
+	void __iomem *addr = hinic3_reg_addr(hwif, reg);
+
+	return ioread32be(addr);
+}
+
+void hinic3_hwif_write_reg(struct hinic3_hwif *hwif, u32 reg, u32 val)
+{
+	void __iomem *addr = hinic3_reg_addr(hwif, reg);
+
+	iowrite32be(val, addr);
+}
+
+static enum hinic3_wait_return check_hwif_ready_handler(void *priv_data)
+{
+	struct hinic3_hwdev *hwdev = priv_data;
+	u32 attr1;
+
+	attr1 = hinic3_hwif_read_reg(hwdev->hwif, HINIC3_CSR_FUNC_ATTR1_ADDR);
+	if (attr1 == HINIC3_PCIE_LINK_DOWN)
+		return HINIC3_WAIT_PROCESS_ERR;
+
+	return HINIC3_AF1_GET(attr1, MGMT_INIT_STATUS) ?
+	       HINIC3_WAIT_PROCESS_CPL : HINIC3_WAIT_PROCESS_WAITING;
+}
+
+static int wait_hwif_ready(struct hinic3_hwdev *hwdev)
+{
+	return hinic3_wait_for_timeout(hwdev, check_hwif_ready_handler,
+				       HINIC3_HWIF_READY_TIMEOUT,
+				       USEC_PER_MSEC);
+}
+
+/* Set attr struct from HW attr values. */
+static void set_hwif_attr(struct hinic3_func_attr *attr, u32 attr0, u32 attr1,
+			  u32 attr2, u32 attr3, u32 attr6)
+{
+	attr->func_global_idx = HINIC3_AF0_GET(attr0, FUNC_GLOBAL_IDX);
+	attr->port_to_port_idx = HINIC3_AF0_GET(attr0, P2P_IDX);
+	attr->pci_intf_idx = HINIC3_AF0_GET(attr0, PCI_INTF_IDX);
+	attr->func_type = HINIC3_AF0_GET(attr0, FUNC_TYPE);
+
+	attr->ppf_idx = HINIC3_AF1_GET(attr1, PPF_IDX);
+	attr->num_aeqs = BIT(HINIC3_AF1_GET(attr1, AEQS_PER_FUNC));
+	attr->num_ceqs = HINIC3_AF2_GET(attr2, CEQS_PER_FUNC);
+	attr->num_irqs = HINIC3_AF2_GET(attr2, IRQS_PER_FUNC);
+	if (attr->num_irqs > HINIC3_MAX_MSIX_ENTRY)
+		attr->num_irqs = HINIC3_MAX_MSIX_ENTRY;
+
+	attr->global_vf_id_of_pf = HINIC3_AF3_GET(attr3, GLOBAL_VF_ID_OF_PF);
+
+	attr->num_sq = HINIC3_AF6_GET(attr6, FUNC_MAX_SQ);
+	attr->msix_flex_en = HINIC3_AF6_GET(attr6, MSIX_FLEX_EN);
+}
+
+/* Read attributes from HW and set attribute struct. */
+static int init_hwif_attr(struct hinic3_hwdev *hwdev)
+{
+	u32 attr0, attr1, attr2, attr3, attr6;
+	struct hinic3_func_attr *attr;
+	struct hinic3_hwif *hwif;
+
+	hwif = hwdev->hwif;
+	attr0 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR0_ADDR);
+	if (attr0 == HINIC3_PCIE_LINK_DOWN)
+		return -EFAULT;
+
+	attr1 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR1_ADDR);
+	if (attr1 == HINIC3_PCIE_LINK_DOWN)
+		return -EFAULT;
+
+	attr2 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR2_ADDR);
+	if (attr2 == HINIC3_PCIE_LINK_DOWN)
+		return -EFAULT;
+
+	attr3 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR3_ADDR);
+	if (attr3 == HINIC3_PCIE_LINK_DOWN)
+		return -EFAULT;
+
+	attr6 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR6_ADDR);
+	if (attr6 == HINIC3_PCIE_LINK_DOWN)
+		return -EFAULT;
+
+	attr = &hwif->attr;
+	set_hwif_attr(attr, attr0, attr1, attr2, attr3, attr6);
+
+	if (attr->func_type != HINIC3_FUNC_TYPE_VF &&
+	    attr->func_type != HINIC3_FUNC_TYPE_PF) {
+		dev_err(hwdev->dev, "unexpected func_type %u\n",
+			attr->func_type);
+		return -EINVAL;
+	}
+
+	if (!hwif->attr.num_ceqs) {
+		dev_err(hwdev->dev, "Ceq num cfg in fw is zero\n");
+		return -EFAULT;
+	}
+
+	if (!hwif->attr.num_irqs) {
+		dev_err(hwdev->dev,
+			"Irq num cfg in fw is zero, msix_flex_en %d\n",
+			hwif->attr.msix_flex_en);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static enum hinic3_doorbell_ctrl hinic3_get_doorbell_ctrl_status(struct hinic3_hwif *hwif)
+{
+	u32 attr4 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR4_ADDR);
+
+	return HINIC3_AF4_GET(attr4, DOORBELL_CTRL);
+}
+
+static enum hinic3_outbound_ctrl hinic3_get_outbound_ctrl_status(struct hinic3_hwif *hwif)
+{
+	u32 attr5 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR5_ADDR);
+
+	return HINIC3_AF5_GET(attr5, OUTBOUND_CTRL);
+}
+
+void hinic3_toggle_doorbell(struct hinic3_hwif *hwif,
+			    enum hinic3_doorbell_ctrl flag)
+{
+	u32 addr, attr4;
+
+	addr = HINIC3_CSR_FUNC_ATTR4_ADDR;
+	attr4 = hinic3_hwif_read_reg(hwif, addr);
+
+	attr4 &= ~HINIC3_AF4_DOORBELL_CTRL_MASK;
+	attr4 |= HINIC3_AF4_SET(flag, DOORBELL_CTRL);
+
+	hinic3_hwif_write_reg(hwif, addr, attr4);
+}
+
+static void hinic3_set_ppf(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_hwif *hwif = hwdev->hwif;
+	struct hinic3_func_attr *attr;
+	u32 addr, val;
+
+	if (HINIC3_IS_VF(hwdev))
+		return;
+
+	/* Read Modify Write */
+	attr = &hwif->attr;
+	addr = HINIC3_CSR_PPF_ELECTION_ADDR;
+	val = hinic3_hwif_read_reg(hwif, addr);
+	val &= ~HINIC3_PPF_ELECTION_IDX_MASK;
+	val |= HINIC3_PPF_ELECTION_SET(attr->func_global_idx, IDX);
+	hinic3_hwif_write_reg(hwif, addr, val);
+
+	/* Check PPF index */
+	val = hinic3_hwif_read_reg(hwif, addr);
+	attr->ppf_idx = HINIC3_PPF_ELECTION_GET(val, IDX);
+}
+
+static int db_area_idx_init(struct hinic3_hwif *hwif, u64 db_base_phy,
+			    u8 __iomem *db_base, u64 db_dwqe_len)
+{
+	struct hinic3_db_area *db_area = &hwif->db_area;
+	u32 db_max_areas;
+
+	hwif->db_base_phy = db_base_phy;
+	hwif->db_base = db_base;
+	hwif->db_dwqe_len = db_dwqe_len;
+
+	db_max_areas = db_dwqe_len > HINIC3_DB_DWQE_SIZE ?
+		       HINIC3_DB_MAX_AREAS : db_dwqe_len / HINIC3_DB_PAGE_SIZE;
+	db_area->db_bitmap_array = bitmap_zalloc(db_max_areas, GFP_KERNEL);
+	if (!db_area->db_bitmap_array)
+		return -ENOMEM;
+
+	db_area->db_max_areas = db_max_areas;
+	spin_lock_init(&db_area->idx_lock);
+
+	return 0;
+}
+
+static void db_area_idx_free(struct hinic3_db_area *db_area)
+{
+	bitmap_free(db_area->db_bitmap_array);
+}
+
+static int get_db_idx(struct hinic3_hwif *hwif, u32 *idx)
+{
+	struct hinic3_db_area *db_area = &hwif->db_area;
+	u32 pg_idx;
+
+	spin_lock(&db_area->idx_lock);
+	pg_idx = find_first_zero_bit(db_area->db_bitmap_array,
+				     db_area->db_max_areas);
+	if (pg_idx == db_area->db_max_areas) {
+		spin_unlock(&db_area->idx_lock);
+		return -ENOMEM;
+	}
+	set_bit(pg_idx, db_area->db_bitmap_array);
+	spin_unlock(&db_area->idx_lock);
+
+	*idx = pg_idx;
+
+	return 0;
+}
+
+static void free_db_idx(struct hinic3_hwif *hwif, u32 idx)
+{
+	struct hinic3_db_area *db_area = &hwif->db_area;
+
+	spin_lock(&db_area->idx_lock);
+	clear_bit(idx, db_area->db_bitmap_array);
+	spin_unlock(&db_area->idx_lock);
+}
+
+void hinic3_free_db_addr(struct hinic3_hwdev *hwdev, const u8 __iomem *db_base)
+{
+	struct hinic3_hwif *hwif;
+	uintptr_t distance;
+	u32 idx;
+
+	hwif = hwdev->hwif;
+	distance = db_base - hwif->db_base;
+	idx = distance / HINIC3_DB_PAGE_SIZE;
+
+	free_db_idx(hwif, idx);
+}
+
+int hinic3_alloc_db_addr(struct hinic3_hwdev *hwdev, void __iomem **db_base,
+			 void __iomem **dwqe_base)
+{
+	struct hinic3_hwif *hwif;
+	u8 __iomem *addr;
+	u32 idx;
+	int err;
+
+	hwif = hwdev->hwif;
+
+	err = get_db_idx(hwif, &idx);
+	if (err)
+		return err;
+
+	addr = hwif->db_base + idx * HINIC3_DB_PAGE_SIZE;
+	*db_base = addr;
+
+	if (dwqe_base)
+		*dwqe_base = addr + HINIC3_DWQE_OFFSET;
+
+	return 0;
+}
+
+void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
+			   enum hinic3_msix_state flag)
+{
+	struct hinic3_hwif *hwif;
+	u8 int_msk = 1;
+	u32 mask_bits;
+	u32 addr;
+
+	hwif = hwdev->hwif;
+
+	if (flag)
+		mask_bits = HINIC3_MSI_CLR_INDIR_SET(int_msk, INT_MSK_SET);
+	else
+		mask_bits = HINIC3_MSI_CLR_INDIR_SET(int_msk, INT_MSK_CLR);
+	mask_bits = mask_bits |
+		    HINIC3_MSI_CLR_INDIR_SET(msix_idx, SIMPLE_INDIR_IDX);
+
+	addr = HINIC3_CSR_FUNC_MSI_CLR_WR_ADDR;
+	hinic3_hwif_write_reg(hwif, addr, mask_bits);
+}
+
+static void disable_all_msix(struct hinic3_hwdev *hwdev)
+{
+	u16 num_irqs = hwdev->hwif->attr.num_irqs;
+	u16 i;
+
+	for (i = 0; i < num_irqs; i++)
+		hinic3_set_msix_state(hwdev, i, HINIC3_MSIX_DISABLE);
+}
+
+void hinic3_msix_intr_clear_resend_bit(struct hinic3_hwdev *hwdev, u16 msix_idx,
+				       u8 clear_resend_en)
+{
+	struct hinic3_hwif *hwif;
+	u32 msix_ctrl, addr;
+
+	hwif = hwdev->hwif;
+
+	msix_ctrl = HINIC3_MSI_CLR_INDIR_SET(msix_idx, SIMPLE_INDIR_IDX) |
+		    HINIC3_MSI_CLR_INDIR_SET(clear_resend_en, RESEND_TIMER_CLR);
+
+	addr = HINIC3_CSR_FUNC_MSI_CLR_WR_ADDR;
+	hinic3_hwif_write_reg(hwif, addr, msix_ctrl);
+}
+
+void hinic3_set_msix_auto_mask_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
+				     enum hinic3_msix_auto_mask flag)
+{
+	struct hinic3_hwif *hwif;
+	u32 mask_bits;
+	u32 addr;
+
+	hwif = hwdev->hwif;
+
+	if (flag)
+		mask_bits = HINIC3_MSI_CLR_INDIR_SET(1, AUTO_MSK_SET);
+	else
+		mask_bits = HINIC3_MSI_CLR_INDIR_SET(1, AUTO_MSK_CLR);
+
+	mask_bits = mask_bits |
+		    HINIC3_MSI_CLR_INDIR_SET(msix_idx, SIMPLE_INDIR_IDX);
+
+	addr = HINIC3_CSR_FUNC_MSI_CLR_WR_ADDR;
+	hinic3_hwif_write_reg(hwif, addr, mask_bits);
+}
+
+static enum hinic3_wait_return check_db_outbound_enable_handler(void *priv_data)
+{
+	enum hinic3_outbound_ctrl outbound_ctrl;
+	struct hinic3_hwif *hwif = priv_data;
+	enum hinic3_doorbell_ctrl db_ctrl;
+
+	db_ctrl = hinic3_get_doorbell_ctrl_status(hwif);
+	outbound_ctrl = hinic3_get_outbound_ctrl_status(hwif);
+	if (outbound_ctrl == ENABLE_OUTBOUND && db_ctrl == ENABLE_DOORBELL)
+		return HINIC3_WAIT_PROCESS_CPL;
+
+	return HINIC3_WAIT_PROCESS_WAITING;
+}
+
+static int wait_until_doorbell_and_outbound_enabled(struct hinic3_hwif *hwif)
+{
+	return hinic3_wait_for_timeout(hwif, check_db_outbound_enable_handler,
+				       HINIC3_DB_AND_OUTBOUND_EN_TIMEOUT,
+				       USEC_PER_MSEC);
+}
+
+void hinic3_set_pf_status(struct hinic3_hwif *hwif,
+			  enum hinic3_pf_status status)
+{
+	u32 attr6 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR6_ADDR);
+
+	attr6 &= ~HINIC3_AF6_PF_STATUS_MASK;
+	attr6 |= HINIC3_AF6_SET(status, PF_STATUS);
+
+	if (hwif->attr.func_type == HINIC3_FUNC_TYPE_VF)
+		return;
+
+	hinic3_hwif_write_reg(hwif, HINIC3_CSR_FUNC_ATTR6_ADDR, attr6);
+}
+
+enum hinic3_pf_status hinic3_get_pf_status(struct hinic3_hwif *hwif)
+{
+	u32 attr6 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR6_ADDR);
+
+	return HINIC3_AF6_GET(attr6, PF_STATUS);
+}
+
+int hinic3_init_hwif(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_pcidev *pci_adapter = hwdev->adapter;
+	struct hinic3_hwif *hwif;
+	u32 attr1, attr4, attr5;
+	int err;
+
+	hwif = kzalloc_obj(*hwif);
+	if (!hwif)
+		return -ENOMEM;
+
+	hwdev->hwif = hwif;
+	/* if function is VF, mgmt_regs_base will be NULL */
+	hwif->cfg_regs_base = pci_adapter->mgmt_reg_base ?
+			      pci_adapter->cfg_reg_base :
+			      (u8 __iomem *)pci_adapter->cfg_reg_base +
+			      HINIC3_VF_CFG_REG_OFFSET;
+
+	hwif->intr_regs_base = pci_adapter->intr_reg_base;
+	hwif->mgmt_regs_base = pci_adapter->mgmt_reg_base;
+
+	err = db_area_idx_init(hwif, pci_adapter->db_base_phy,
+			       pci_adapter->db_base,
+			       pci_adapter->db_dwqe_len);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init db area.\n");
+		goto err_free_hwif;
+	}
+
+	err = wait_hwif_ready(hwdev);
+	if (err) {
+		attr1 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR1_ADDR);
+		dev_err(hwdev->dev, "Chip status is not ready, attr1:0x%x\n",
+			attr1);
+		goto err_free_db_area_idx;
+	}
+
+	err = init_hwif_attr(hwdev);
+	if (err) {
+		dev_err(hwdev->dev, "Init hwif attr failed\n");
+		goto err_free_db_area_idx;
+	}
+
+	err = wait_until_doorbell_and_outbound_enabled(hwif);
+	if (err) {
+		attr4 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR4_ADDR);
+		attr5 = hinic3_hwif_read_reg(hwif, HINIC3_CSR_FUNC_ATTR5_ADDR);
+		dev_err(hwdev->dev, "HW doorbell/outbound is disabled, attr4 0x%x attr5 0x%x\n",
+			attr4, attr5);
+		goto err_free_db_area_idx;
+	}
+
+	hinic3_set_ppf(hwdev);
+
+	disable_all_msix(hwdev);
+	/* disable mgmt cpu from reporting any event */
+	hinic3_set_pf_status(hwdev->hwif, HINIC3_PF_STATUS_INIT);
+
+	dev_dbg(hwdev->dev, "global_func_idx: %u, func_type: %d, host_id: %u, ppf: %u\n",
+		hwif->attr.func_global_idx, hwif->attr.func_type,
+		hwif->attr.pci_intf_idx, hwif->attr.ppf_idx);
+
+	return 0;
+
+err_free_db_area_idx:
+	db_area_idx_free(&hwif->db_area);
+err_free_hwif:
+	kfree(hwif);
+
+	return err;
+}
+
+void hinic3_free_hwif(struct hinic3_hwdev *hwdev)
+{
+	db_area_idx_free(&hwdev->hwif->db_area);
+	kfree(hwdev->hwif);
+}
+
+u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->hwif->attr.func_global_idx;
+}
+
+u8 hinic3_pf_id_of_vf(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->hwif->attr.port_to_port_idx;
+}
+
+u16 hinic3_glb_pf_vf_offset(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->hwif->attr.global_vf_id_of_pf;
+}
+
+u8 hinic3_ppf_idx(struct hinic3_hwdev *hwdev)
+{
+	return hwdev->hwif->attr.ppf_idx;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_hwif.h

@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_HWIF_H_
+#define _HINIC3_HWIF_H_
+
+#include <linux/build_bug.h>
+#include <linux/spinlock_types.h>
+
+struct hinic3_hwdev;
+
+enum hinic3_func_type {
+	HINIC3_FUNC_TYPE_PF = 0,
+	HINIC3_FUNC_TYPE_VF = 1,
+};
+
+struct hinic3_db_area {
+	unsigned long *db_bitmap_array;
+	u32           db_max_areas;
+	/* protect doorbell area alloc and free */
+	spinlock_t    idx_lock;
+};
+
+struct hinic3_func_attr {
+	enum hinic3_func_type func_type;
+	u16                   func_global_idx;
+	u16                   global_vf_id_of_pf;
+	u16                   num_irqs;
+	u16                   num_sq;
+	u8                    port_to_port_idx;
+	u8                    pci_intf_idx;
+	u8                    ppf_idx;
+	u8                    num_aeqs;
+	u8                    num_ceqs;
+	u8                    msix_flex_en;
+};
+
+static_assert(sizeof(struct hinic3_func_attr) == 20);
+
+struct hinic3_hwif {
+	u8 __iomem              *cfg_regs_base;
+	u8 __iomem              *intr_regs_base;
+	u8 __iomem              *mgmt_regs_base;
+	u64                     db_base_phy;
+	u64                     db_dwqe_len;
+	u8 __iomem              *db_base;
+	struct hinic3_db_area   db_area;
+	struct hinic3_func_attr attr;
+};
+
+enum hinic3_outbound_ctrl {
+	ENABLE_OUTBOUND  = 0x0,
+	DISABLE_OUTBOUND = 0x1,
+};
+
+enum hinic3_pf_status {
+	HINIC3_PF_STATUS_INIT            = 0x0,
+	HINIC3_PF_STATUS_ACTIVE_FLAG     = 0x11,
+	HINIC3_PF_STATUS_FLR_START_FLAG  = 0x12,
+	HINIC3_PF_STATUS_FLR_FINISH_FLAG = 0x13,
+};
+
+enum hinic3_doorbell_ctrl {
+	ENABLE_DOORBELL  = 0,
+	DISABLE_DOORBELL = 1,
+};
+
+enum hinic3_msix_state {
+	HINIC3_MSIX_ENABLE,
+	HINIC3_MSIX_DISABLE,
+};
+
+enum hinic3_msix_auto_mask {
+	HINIC3_CLR_MSIX_AUTO_MASK,
+	HINIC3_SET_MSIX_AUTO_MASK,
+};
+
+#define HINIC3_FUNC_TYPE(hwdev)  ((hwdev)->hwif->attr.func_type)
+#define HINIC3_IS_PF(hwdev)  \
+	(HINIC3_FUNC_TYPE(hwdev) == HINIC3_FUNC_TYPE_PF)
+#define HINIC3_IS_VF(hwdev)  \
+	(HINIC3_FUNC_TYPE(hwdev) == HINIC3_FUNC_TYPE_VF)
+
+u32 hinic3_hwif_read_reg(struct hinic3_hwif *hwif, u32 reg);
+void hinic3_hwif_write_reg(struct hinic3_hwif *hwif, u32 reg, u32 val);
+
+void hinic3_toggle_doorbell(struct hinic3_hwif *hwif,
+			    enum hinic3_doorbell_ctrl flag);
+
+int hinic3_alloc_db_addr(struct hinic3_hwdev *hwdev, void __iomem **db_base,
+			 void __iomem **dwqe_base);
+void hinic3_free_db_addr(struct hinic3_hwdev *hwdev, const u8 __iomem *db_base);
+
+void hinic3_set_pf_status(struct hinic3_hwif *hwif,
+			  enum hinic3_pf_status status);
+enum hinic3_pf_status hinic3_get_pf_status(struct hinic3_hwif *hwif);
+
+int hinic3_init_hwif(struct hinic3_hwdev *hwdev);
+void hinic3_free_hwif(struct hinic3_hwdev *hwdev);
+
+void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
+			   enum hinic3_msix_state flag);
+void hinic3_msix_intr_clear_resend_bit(struct hinic3_hwdev *hwdev, u16 msix_idx,
+				       u8 clear_resend_en);
+void hinic3_set_msix_auto_mask_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
+				     enum hinic3_msix_auto_mask flag);
+
+u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev);
+u8 hinic3_pf_id_of_vf(struct hinic3_hwdev *hwdev);
+u16 hinic3_glb_pf_vf_offset(struct hinic3_hwdev *hwdev);
+u8 hinic3_ppf_idx(struct hinic3_hwdev *hwdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_irq.c

@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/dim.h>
+#include <linux/netdevice.h>
+
+#include "hinic3_hw_comm.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_rx.h"
+#include "hinic3_tx.h"
+
+#define HINIC3_COAL_PKT_SHIFT   5
+
+static void hinic3_net_dim(struct hinic3_nic_dev *nic_dev,
+			   struct hinic3_irq_cfg *irq_cfg)
+{
+	struct hinic3_rxq *rxq = irq_cfg->rxq;
+	struct dim_sample sample = {};
+
+	if (!test_bit(HINIC3_INTF_UP, &nic_dev->flags) ||
+	    !nic_dev->adaptive_rx_coal)
+		return;
+
+	dim_update_sample(irq_cfg->total_events, rxq->rxq_stats.packets,
+			  rxq->rxq_stats.bytes, &sample);
+	net_dim(&rxq->dim, &sample);
+}
+
+static int hinic3_poll(struct napi_struct *napi, int budget)
+{
+	struct hinic3_irq_cfg *irq_cfg =
+		container_of(napi, struct hinic3_irq_cfg, napi);
+	struct hinic3_nic_dev *nic_dev;
+	bool busy = false;
+	int work_done;
+
+	nic_dev = netdev_priv(irq_cfg->netdev);
+
+	busy |= hinic3_tx_poll(irq_cfg->txq, budget);
+
+	if (unlikely(!budget))
+		return 0;
+
+	work_done = hinic3_rx_poll(irq_cfg->rxq, budget);
+	busy |= work_done >= budget;
+
+	if (busy)
+		return budget;
+
+	if (likely(napi_complete_done(napi, work_done))) {
+		hinic3_net_dim(nic_dev, irq_cfg);
+		hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx,
+				      HINIC3_MSIX_ENABLE);
+	}
+
+	return work_done;
+}
+
+static void qp_add_napi(struct hinic3_irq_cfg *irq_cfg)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(irq_cfg->netdev);
+
+	netif_napi_add(nic_dev->netdev, &irq_cfg->napi, hinic3_poll);
+	napi_enable(&irq_cfg->napi);
+}
+
+static void qp_del_napi(struct hinic3_irq_cfg *irq_cfg)
+{
+	napi_disable(&irq_cfg->napi);
+	netif_napi_del(&irq_cfg->napi);
+}
+
+static irqreturn_t qp_irq(int irq, void *data)
+{
+	struct hinic3_irq_cfg *irq_cfg = data;
+	struct hinic3_nic_dev *nic_dev;
+
+	nic_dev = netdev_priv(irq_cfg->netdev);
+	hinic3_msix_intr_clear_resend_bit(nic_dev->hwdev,
+					  irq_cfg->msix_entry_idx, 1);
+
+	irq_cfg->total_events++;
+
+	napi_schedule(&irq_cfg->napi);
+
+	return IRQ_HANDLED;
+}
+
+static int hinic3_request_irq(struct hinic3_irq_cfg *irq_cfg, u16 q_id)
+{
+	struct hinic3_interrupt_info info = {};
+	struct hinic3_nic_dev *nic_dev;
+	struct net_device *netdev;
+	int err;
+
+	netdev = irq_cfg->netdev;
+	nic_dev = netdev_priv(netdev);
+	qp_add_napi(irq_cfg);
+
+	info.msix_index = irq_cfg->msix_entry_idx;
+	info.interrupt_coalesc_set = 1;
+	info.pending_limit = nic_dev->intr_coalesce[q_id].pending_limit;
+	info.coalesc_timer_cfg =
+		nic_dev->intr_coalesce[q_id].coalesce_timer_cfg;
+	info.resend_timer_cfg = nic_dev->intr_coalesce[q_id].resend_timer_cfg;
+	err = hinic3_set_interrupt_cfg(nic_dev->hwdev, info);
+	if (err) {
+		netdev_err(netdev, "Failed to set RX interrupt coalescing attribute.\n");
+		qp_del_napi(irq_cfg);
+		return err;
+	}
+
+	err = request_irq(irq_cfg->irq_id, qp_irq, 0, irq_cfg->irq_name,
+			  irq_cfg);
+	if (err) {
+		qp_del_napi(irq_cfg);
+		return err;
+	}
+
+	irq_set_affinity_hint(irq_cfg->irq_id, &irq_cfg->affinity_mask);
+
+	return 0;
+}
+
+static void hinic3_release_irq(struct hinic3_irq_cfg *irq_cfg)
+{
+	irq_set_affinity_hint(irq_cfg->irq_id, NULL);
+	free_irq(irq_cfg->irq_id, irq_cfg);
+}
+
+static int hinic3_set_interrupt_moder(struct net_device *netdev, u16 q_id,
+				      u8 coalesc_timer_cfg, u8 pending_limit)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_interrupt_info info = {};
+	int err;
+
+	if (q_id >= nic_dev->q_params.num_qps)
+		return 0;
+
+	info.interrupt_coalesc_set = 1;
+	info.coalesc_timer_cfg = coalesc_timer_cfg;
+	info.pending_limit = pending_limit;
+	info.msix_index = nic_dev->q_params.irq_cfg[q_id].msix_entry_idx;
+	info.resend_timer_cfg =
+		nic_dev->intr_coalesce[q_id].resend_timer_cfg;
+
+	err = hinic3_set_interrupt_cfg(nic_dev->hwdev, info);
+	if (err) {
+		netdev_err(netdev,
+			   "Failed to modify moderation for Queue: %u\n", q_id);
+	} else {
+		nic_dev->rxqs[q_id].last_coalesc_timer_cfg = coalesc_timer_cfg;
+		nic_dev->rxqs[q_id].last_pending_limit = pending_limit;
+	}
+
+	return err;
+}
+
+static void hinic3_update_queue_coal(struct net_device *netdev, u16 q_id,
+				     u16 coal_timer, u16 coal_pkts)
+{
+	struct hinic3_intr_coal_info *q_coal;
+	u8 coalesc_timer_cfg, pending_limit;
+	struct hinic3_nic_dev *nic_dev;
+
+	nic_dev = netdev_priv(netdev);
+
+	q_coal = &nic_dev->intr_coalesce[q_id];
+	coalesc_timer_cfg = (u8)coal_timer;
+	pending_limit = clamp_t(u8, coal_pkts >> HINIC3_COAL_PKT_SHIFT,
+				q_coal->rx_pending_limit_low,
+				q_coal->rx_pending_limit_high);
+
+	hinic3_set_interrupt_moder(nic_dev->netdev, q_id,
+				   coalesc_timer_cfg, pending_limit);
+}
+
+static void hinic3_rx_dim_work(struct work_struct *work)
+{
+	struct dim_cq_moder cur_moder;
+	struct hinic3_rxq *rxq;
+	struct dim *dim;
+
+	dim = container_of(work, struct dim, work);
+	rxq = container_of(dim, struct hinic3_rxq, dim);
+
+	cur_moder = net_dim_get_rx_moderation(dim->mode, dim->profile_ix);
+
+	hinic3_update_queue_coal(rxq->netdev, rxq->q_id,
+				 cur_moder.usec, cur_moder.pkts);
+
+	dim->state = DIM_START_MEASURE;
+}
+
+int hinic3_qps_irq_init(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct pci_dev *pdev = nic_dev->pdev;
+	struct hinic3_irq_cfg *irq_cfg;
+	struct msix_entry *msix_entry;
+	u32 local_cpu;
+	u16 q_id;
+	int err;
+
+	for (q_id = 0; q_id < nic_dev->q_params.num_qps; q_id++) {
+		msix_entry = &nic_dev->qps_msix_entries[q_id];
+		irq_cfg = &nic_dev->q_params.irq_cfg[q_id];
+
+		irq_cfg->irq_id = msix_entry->vector;
+		irq_cfg->msix_entry_idx = msix_entry->entry;
+		irq_cfg->netdev = netdev;
+		irq_cfg->txq = &nic_dev->txqs[q_id];
+		irq_cfg->rxq = &nic_dev->rxqs[q_id];
+		nic_dev->rxqs[q_id].irq_cfg = irq_cfg;
+
+		local_cpu = cpumask_local_spread(q_id, dev_to_node(&pdev->dev));
+		cpumask_set_cpu(local_cpu, &irq_cfg->affinity_mask);
+
+		snprintf(irq_cfg->irq_name, sizeof(irq_cfg->irq_name),
+			 "%s_qp%u", netdev->name, q_id);
+
+		err = hinic3_request_irq(irq_cfg, q_id);
+		if (err) {
+			netdev_err(netdev, "Failed to request Rx irq\n");
+			goto err_release_irqs;
+		}
+
+		INIT_WORK(&irq_cfg->rxq->dim.work, hinic3_rx_dim_work);
+		irq_cfg->rxq->dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_CQE;
+
+		netif_queue_set_napi(irq_cfg->netdev, q_id,
+				     NETDEV_QUEUE_TYPE_RX, &irq_cfg->napi);
+		netif_queue_set_napi(irq_cfg->netdev, q_id,
+				     NETDEV_QUEUE_TYPE_TX, &irq_cfg->napi);
+
+		hinic3_set_msix_auto_mask_state(nic_dev->hwdev,
+						irq_cfg->msix_entry_idx,
+						HINIC3_SET_MSIX_AUTO_MASK);
+		hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx,
+				      HINIC3_MSIX_ENABLE);
+	}
+
+	return 0;
+
+err_release_irqs:
+	while (q_id > 0) {
+		q_id--;
+		irq_cfg = &nic_dev->q_params.irq_cfg[q_id];
+		qp_del_napi(irq_cfg);
+		netif_queue_set_napi(irq_cfg->netdev, q_id,
+				     NETDEV_QUEUE_TYPE_RX, NULL);
+		netif_queue_set_napi(irq_cfg->netdev, q_id,
+				     NETDEV_QUEUE_TYPE_TX, NULL);
+
+		hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx,
+				      HINIC3_MSIX_DISABLE);
+		hinic3_set_msix_auto_mask_state(nic_dev->hwdev,
+						irq_cfg->msix_entry_idx,
+						HINIC3_CLR_MSIX_AUTO_MASK);
+		hinic3_release_irq(irq_cfg);
+		disable_work_sync(&irq_cfg->rxq->dim.work);
+	}
+
+	return err;
+}
+
+void hinic3_qps_irq_uninit(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_irq_cfg *irq_cfg;
+	u16 q_id;
+
+	for (q_id = 0; q_id < nic_dev->q_params.num_qps; q_id++) {
+		irq_cfg = &nic_dev->q_params.irq_cfg[q_id];
+		qp_del_napi(irq_cfg);
+		netif_queue_set_napi(irq_cfg->netdev, q_id,
+				     NETDEV_QUEUE_TYPE_RX, NULL);
+		netif_queue_set_napi(irq_cfg->netdev, q_id,
+				     NETDEV_QUEUE_TYPE_TX, NULL);
+		hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx,
+				      HINIC3_MSIX_DISABLE);
+		hinic3_set_msix_auto_mask_state(nic_dev->hwdev,
+						irq_cfg->msix_entry_idx,
+						HINIC3_CLR_MSIX_AUTO_MASK);
+		hinic3_release_irq(irq_cfg);
+		disable_work_sync(&irq_cfg->rxq->dim.work);
+	}
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_lld.c

@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/delay.h>
+#include <linux/iopoll.h>
+
+#include "hinic3_hw_cfg.h"
+#include "hinic3_hw_comm.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_lld.h"
+#include "hinic3_mgmt.h"
+#include "hinic3_pci_id_tbl.h"
+
+#define HINIC3_VF_PCI_CFG_REG_BAR  0
+#define HINIC3_PF_PCI_CFG_REG_BAR  1
+#define HINIC3_PCI_INTR_REG_BAR    2
+/* Only PF has mgmt bar */
+#define HINIC3_PCI_MGMT_REG_BAR    3
+#define HINIC3_PCI_DB_BAR          4
+
+#define HINIC3_IS_VF_DEV(pdev)     ((pdev)->device == PCI_DEV_ID_HINIC3_VF)
+
+#define HINIC3_EVENT_POLL_SLEEP_US   1000
+#define HINIC3_EVENT_POLL_TIMEOUT_US 10000000
+
+static struct hinic3_adev_device {
+	const char *name;
+} hinic3_adev_devices[HINIC3_SERVICE_T_MAX] = {
+	[HINIC3_SERVICE_T_NIC] = {
+		.name = "nic",
+	},
+};
+
+static bool hinic3_adev_svc_supported(struct hinic3_hwdev *hwdev,
+				      enum hinic3_service_type svc_type)
+{
+	switch (svc_type) {
+	case HINIC3_SERVICE_T_NIC:
+		return hinic3_support_nic(hwdev);
+	default:
+		break;
+	}
+
+	return false;
+}
+
+static void hinic3_comm_adev_release(struct device *dev)
+{
+	struct hinic3_adev *hadev = container_of(dev, struct hinic3_adev,
+						 adev.dev);
+
+	kfree(hadev);
+}
+
+static struct hinic3_adev *hinic3_add_one_adev(struct hinic3_hwdev *hwdev,
+					       enum hinic3_service_type svc_type)
+{
+	struct hinic3_adev *hadev;
+	const char *svc_name;
+	int ret;
+
+	hadev = kzalloc_obj(*hadev);
+	if (!hadev)
+		return NULL;
+
+	svc_name = hinic3_adev_devices[svc_type].name;
+	hadev->adev.name = svc_name;
+	hadev->adev.id = hwdev->dev_id;
+	hadev->adev.dev.parent = hwdev->dev;
+	hadev->adev.dev.release = hinic3_comm_adev_release;
+	hadev->svc_type = svc_type;
+	hadev->hwdev = hwdev;
+
+	ret = auxiliary_device_init(&hadev->adev);
+	if (ret) {
+		dev_err(hwdev->dev, "failed init adev %s %u\n",
+			svc_name, hwdev->dev_id);
+		kfree(hadev);
+		return NULL;
+	}
+
+	ret = auxiliary_device_add(&hadev->adev);
+	if (ret) {
+		dev_err(hwdev->dev, "failed to add adev %s %u\n",
+			svc_name, hwdev->dev_id);
+		auxiliary_device_uninit(&hadev->adev);
+		return NULL;
+	}
+
+	return hadev;
+}
+
+static void hinic3_del_one_adev(struct hinic3_hwdev *hwdev,
+				enum hinic3_service_type svc_type)
+{
+	struct hinic3_pcidev *pci_adapter = hwdev->adapter;
+	struct hinic3_adev *hadev;
+	int timeout;
+	bool state;
+
+	timeout = read_poll_timeout(test_and_set_bit, state, !state,
+				    HINIC3_EVENT_POLL_SLEEP_US,
+				    HINIC3_EVENT_POLL_TIMEOUT_US,
+				    false, svc_type, &pci_adapter->state);
+
+	hadev = pci_adapter->hadev[svc_type];
+	auxiliary_device_delete(&hadev->adev);
+	auxiliary_device_uninit(&hadev->adev);
+	pci_adapter->hadev[svc_type] = NULL;
+	if (!timeout)
+		clear_bit(svc_type, &pci_adapter->state);
+}
+
+static int hinic3_attach_aux_devices(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_pcidev *pci_adapter = hwdev->adapter;
+	enum hinic3_service_type svc_type;
+
+	mutex_lock(&pci_adapter->pdev_mutex);
+
+	for (svc_type = 0; svc_type < HINIC3_SERVICE_T_MAX; svc_type++) {
+		if (!hinic3_adev_svc_supported(hwdev, svc_type))
+			continue;
+
+		pci_adapter->hadev[svc_type] = hinic3_add_one_adev(hwdev,
+								   svc_type);
+		if (!pci_adapter->hadev[svc_type])
+			goto err_del_adevs;
+	}
+	mutex_unlock(&pci_adapter->pdev_mutex);
+
+	return 0;
+
+err_del_adevs:
+	while (svc_type > 0) {
+		svc_type--;
+		if (pci_adapter->hadev[svc_type]) {
+			hinic3_del_one_adev(hwdev, svc_type);
+			pci_adapter->hadev[svc_type] = NULL;
+		}
+	}
+	mutex_unlock(&pci_adapter->pdev_mutex);
+
+	return -ENOMEM;
+}
+
+static void hinic3_detach_aux_devices(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_pcidev *pci_adapter = hwdev->adapter;
+	int i;
+
+	mutex_lock(&pci_adapter->pdev_mutex);
+	for (i = 0; i < ARRAY_SIZE(hinic3_adev_devices); i++) {
+		if (pci_adapter->hadev[i])
+			hinic3_del_one_adev(hwdev, i);
+	}
+	mutex_unlock(&pci_adapter->pdev_mutex);
+}
+
+struct hinic3_hwdev *hinic3_adev_get_hwdev(struct auxiliary_device *adev)
+{
+	struct hinic3_adev *hadev;
+
+	hadev = container_of(adev, struct hinic3_adev, adev);
+
+	return hadev->hwdev;
+}
+
+void hinic3_adev_event_register(struct auxiliary_device *adev,
+				void (*event_handler)(struct auxiliary_device *adev,
+						      struct hinic3_event_info *event))
+{
+	struct hinic3_adev *hadev;
+
+	hadev = container_of(adev, struct hinic3_adev, adev);
+	hadev->event = event_handler;
+}
+
+void hinic3_adev_event_unregister(struct auxiliary_device *adev)
+{
+	struct hinic3_adev *hadev;
+
+	hadev = container_of(adev, struct hinic3_adev, adev);
+	hadev->event = NULL;
+}
+
+static int hinic3_mapping_bar(struct pci_dev *pdev,
+			      struct hinic3_pcidev *pci_adapter)
+{
+	int cfg_bar;
+
+	cfg_bar = HINIC3_IS_VF_DEV(pdev) ?
+			HINIC3_VF_PCI_CFG_REG_BAR : HINIC3_PF_PCI_CFG_REG_BAR;
+
+	pci_adapter->cfg_reg_base = pci_ioremap_bar(pdev, cfg_bar);
+	if (!pci_adapter->cfg_reg_base) {
+		dev_err(&pdev->dev, "Failed to map configuration regs\n");
+		return -ENOMEM;
+	}
+
+	pci_adapter->intr_reg_base = pci_ioremap_bar(pdev,
+						     HINIC3_PCI_INTR_REG_BAR);
+	if (!pci_adapter->intr_reg_base) {
+		dev_err(&pdev->dev, "Failed to map interrupt regs\n");
+		goto err_unmap_cfg_reg_base;
+	}
+
+	if (!HINIC3_IS_VF_DEV(pdev)) {
+		pci_adapter->mgmt_reg_base =
+			pci_ioremap_bar(pdev, HINIC3_PCI_MGMT_REG_BAR);
+		if (!pci_adapter->mgmt_reg_base) {
+			dev_err(&pdev->dev, "Failed to map mgmt regs\n");
+			goto err_unmap_intr_reg_base;
+		}
+	}
+
+	pci_adapter->db_base_phy = pci_resource_start(pdev, HINIC3_PCI_DB_BAR);
+	pci_adapter->db_dwqe_len = pci_resource_len(pdev, HINIC3_PCI_DB_BAR);
+	pci_adapter->db_base = pci_ioremap_bar(pdev, HINIC3_PCI_DB_BAR);
+	if (!pci_adapter->db_base) {
+		dev_err(&pdev->dev, "Failed to map doorbell regs\n");
+		goto err_unmap_mgmt_reg_base;
+	}
+
+	return 0;
+
+err_unmap_mgmt_reg_base:
+	if (!HINIC3_IS_VF_DEV(pdev))
+		iounmap(pci_adapter->mgmt_reg_base);
+err_unmap_intr_reg_base:
+	iounmap(pci_adapter->intr_reg_base);
+err_unmap_cfg_reg_base:
+	iounmap(pci_adapter->cfg_reg_base);
+
+	return -ENOMEM;
+}
+
+static void hinic3_unmapping_bar(struct hinic3_pcidev *pci_adapter)
+{
+	iounmap(pci_adapter->db_base);
+	if (!HINIC3_IS_VF_DEV(pci_adapter->pdev))
+		iounmap(pci_adapter->mgmt_reg_base);
+	iounmap(pci_adapter->intr_reg_base);
+	iounmap(pci_adapter->cfg_reg_base);
+}
+
+static int hinic3_pci_init(struct pci_dev *pdev)
+{
+	struct hinic3_pcidev *pci_adapter;
+	int err;
+
+	pci_adapter = kzalloc_obj(*pci_adapter);
+	if (!pci_adapter)
+		return -ENOMEM;
+
+	pci_adapter->pdev = pdev;
+	mutex_init(&pci_adapter->pdev_mutex);
+
+	pci_set_drvdata(pdev, pci_adapter);
+
+	err = pci_enable_device(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to enable PCI device\n");
+		goto err_free_pci_adapter;
+	}
+
+	err = pci_request_regions(pdev, HINIC3_NIC_DRV_NAME);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to request regions\n");
+		goto err_disable_device;
+	}
+
+	pci_set_master(pdev);
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev, "Failed to set DMA mask\n");
+		goto err_release_regions;
+	}
+
+	return 0;
+
+err_release_regions:
+	pci_clear_master(pdev);
+	pci_release_regions(pdev);
+err_disable_device:
+	pci_disable_device(pdev);
+err_free_pci_adapter:
+	pci_set_drvdata(pdev, NULL);
+	mutex_destroy(&pci_adapter->pdev_mutex);
+	kfree(pci_adapter);
+
+	return err;
+}
+
+static void hinic3_pci_uninit(struct pci_dev *pdev)
+{
+	struct hinic3_pcidev *pci_adapter = pci_get_drvdata(pdev);
+
+	pci_clear_master(pdev);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+	mutex_destroy(&pci_adapter->pdev_mutex);
+	kfree(pci_adapter);
+}
+
+static int hinic3_func_init(struct pci_dev *pdev,
+			    struct hinic3_pcidev *pci_adapter)
+{
+	int err;
+
+	err = hinic3_init_hwdev(pdev);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to initialize hardware device\n");
+		return err;
+	}
+
+	if (HINIC3_IS_PF(pci_adapter->hwdev))
+		hinic3_sync_time_to_fw(pci_adapter->hwdev);
+
+	err = hinic3_attach_aux_devices(pci_adapter->hwdev);
+	if (err)
+		goto err_free_hwdev;
+
+	return 0;
+
+err_free_hwdev:
+	hinic3_free_hwdev(pci_adapter->hwdev);
+
+	return err;
+}
+
+static void hinic3_func_uninit(struct pci_dev *pdev)
+{
+	struct hinic3_pcidev *pci_adapter = pci_get_drvdata(pdev);
+
+	/* disable mgmt reporting before flushing mgmt work-queue. */
+	hinic3_set_pf_status(pci_adapter->hwdev->hwif, HINIC3_PF_STATUS_INIT);
+	hinic3_flush_mgmt_workq(pci_adapter->hwdev);
+	hinic3_detach_aux_devices(pci_adapter->hwdev);
+	hinic3_free_hwdev(pci_adapter->hwdev);
+}
+
+static int hinic3_probe_func(struct hinic3_pcidev *pci_adapter)
+{
+	struct pci_dev *pdev = pci_adapter->pdev;
+	struct comm_cmd_bdf_info bdf_info = {};
+	int err;
+
+	err = hinic3_mapping_bar(pdev, pci_adapter);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to map bar\n");
+		goto err_out;
+	}
+
+	err = hinic3_func_init(pdev, pci_adapter);
+	if (err)
+		goto err_unmap_bar;
+
+	if (HINIC3_IS_PF(pci_adapter->hwdev)) {
+		bdf_info.function_idx =
+			hinic3_global_func_id(pci_adapter->hwdev);
+		bdf_info.bus = pdev->bus->number;
+		bdf_info.device = PCI_SLOT(pdev->devfn);
+		bdf_info.function =  PCI_FUNC(pdev->devfn);
+
+		err = hinic3_set_bdf_ctxt(pci_adapter->hwdev, &bdf_info);
+		if (err) {
+			dev_err(&pdev->dev, "Failed to set BDF info to fw\n");
+			goto err_uninit_func;
+		}
+	}
+
+	return 0;
+
+err_uninit_func:
+	hinic3_func_uninit(pdev);
+err_unmap_bar:
+	hinic3_unmapping_bar(pci_adapter);
+err_out:
+	dev_err(&pdev->dev, "PCIe device probe function failed\n");
+
+	return err;
+}
+
+static void hinic3_remove_func(struct hinic3_pcidev *pci_adapter)
+{
+	struct pci_dev *pdev = pci_adapter->pdev;
+
+	hinic3_func_uninit(pdev);
+	hinic3_unmapping_bar(pci_adapter);
+}
+
+static int hinic3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	struct hinic3_pcidev *pci_adapter;
+	int err;
+
+	err = hinic3_pci_init(pdev);
+	if (err)
+		goto err_out;
+
+	pci_adapter = pci_get_drvdata(pdev);
+	err = hinic3_probe_func(pci_adapter);
+	if (err)
+		goto err_uninit_pci;
+
+	return 0;
+
+err_uninit_pci:
+	hinic3_pci_uninit(pdev);
+err_out:
+	dev_err(&pdev->dev, "PCIe device probe failed\n");
+
+	return err;
+}
+
+static void hinic3_remove(struct pci_dev *pdev)
+{
+	struct hinic3_pcidev *pci_adapter = pci_get_drvdata(pdev);
+
+	hinic3_remove_func(pci_adapter);
+	hinic3_pci_uninit(pdev);
+}
+
+static const struct pci_device_id hinic3_pci_table[] = {
+	{ PCI_VDEVICE(HUAWEI, PCI_DEV_ID_HINIC3_PF) },
+	{ PCI_VDEVICE(HUAWEI, PCI_DEV_ID_HINIC3_VF) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(pci, hinic3_pci_table);
+
+static void hinic3_shutdown(struct pci_dev *pdev)
+{
+	struct hinic3_pcidev *pci_adapter = pci_get_drvdata(pdev);
+
+	pci_disable_device(pdev);
+
+	if (pci_adapter)
+		hinic3_set_api_stop(pci_adapter->hwdev);
+}
+
+static struct pci_driver hinic3_driver = {
+	.name            = HINIC3_NIC_DRV_NAME,
+	.id_table        = hinic3_pci_table,
+	.probe           = hinic3_probe,
+	.remove          = hinic3_remove,
+	.shutdown        = hinic3_shutdown,
+	.sriov_configure = pci_sriov_configure_simple
+};
+
+int hinic3_lld_init(void)
+{
+	return pci_register_driver(&hinic3_driver);
+}
+
+void hinic3_lld_exit(void)
+{
+	pci_unregister_driver(&hinic3_driver);
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_lld.h

@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_LLD_H_
+#define _HINIC3_LLD_H_
+
+#include <linux/auxiliary_bus.h>
+
+struct hinic3_event_info;
+
+#define HINIC3_NIC_DRV_NAME "hinic3"
+
+int hinic3_lld_init(void);
+void hinic3_lld_exit(void);
+void hinic3_adev_event_register(struct auxiliary_device *adev,
+				void (*event_handler)(struct auxiliary_device *adev,
+						      struct hinic3_event_info *event));
+void hinic3_adev_event_unregister(struct auxiliary_device *adev);
+struct hinic3_hwdev *hinic3_adev_get_hwdev(struct auxiliary_device *adev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_main.c

@@ -0,0 +1,563 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+
+#include "hinic3_common.h"
+#include "hinic3_hw_comm.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_lld.h"
+#include "hinic3_nic_cfg.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_io.h"
+#include "hinic3_rss.h"
+#include "hinic3_rx.h"
+#include "hinic3_tx.h"
+
+#define HINIC3_NIC_DRV_DESC  "Intelligent Network Interface Card Driver"
+
+#define HINIC3_DEFAULT_MSG_ENABLE  (NETIF_MSG_DRV | NETIF_MSG_LINK)
+#define HINIC3_RX_BUF_LEN          2048
+#define HINIC3_LRO_REPLENISH_THLD  256
+#define HINIC3_NIC_DEV_WQ_NAME     "hinic3_nic_dev_wq"
+
+#define HINIC3_SQ_DEPTH            1024
+#define HINIC3_RQ_DEPTH            1024
+
+#define HINIC3_DEFAULT_TXRX_MSIX_PENDING_LIMIT      2
+#define HINIC3_DEFAULT_TXRX_MSIX_COALESC_TIMER_CFG  25
+#define HINIC3_DEFAULT_TXRX_MSIX_RESEND_TIMER_CFG   7
+
+#define HINIC3_RX_PENDING_LIMIT_LOW   2
+#define HINIC3_RX_PENDING_LIMIT_HIGH  8
+
+static void init_intr_coal_param(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_intr_coal_info *info;
+	u16 i;
+
+	for (i = 0; i < nic_dev->max_qps; i++) {
+		info = &nic_dev->intr_coalesce[i];
+		info->pending_limit = HINIC3_DEFAULT_TXRX_MSIX_PENDING_LIMIT;
+		info->coalesce_timer_cfg =
+			HINIC3_DEFAULT_TXRX_MSIX_COALESC_TIMER_CFG;
+		info->resend_timer_cfg =
+			HINIC3_DEFAULT_TXRX_MSIX_RESEND_TIMER_CFG;
+
+		info->rx_pending_limit_high = HINIC3_RX_PENDING_LIMIT_HIGH;
+		info->rx_pending_limit_low = HINIC3_RX_PENDING_LIMIT_LOW;
+	}
+
+	nic_dev->adaptive_rx_coal = 1;
+}
+
+static int hinic3_init_intr_coalesce(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	nic_dev->intr_coalesce = kzalloc_objs(*nic_dev->intr_coalesce,
+					      nic_dev->max_qps);
+
+	if (!nic_dev->intr_coalesce)
+		return -ENOMEM;
+
+	init_intr_coal_param(netdev);
+
+	return 0;
+}
+
+static void hinic3_free_intr_coalesce(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	kfree(nic_dev->intr_coalesce);
+}
+
+static int hinic3_alloc_txrxqs(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	int err;
+
+	err = hinic3_alloc_txqs(netdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to alloc txqs\n");
+		return err;
+	}
+
+	err = hinic3_alloc_rxqs(netdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to alloc rxqs\n");
+		goto err_free_txqs;
+	}
+
+	err = hinic3_init_intr_coalesce(netdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init_intr_coalesce\n");
+		goto err_free_rxqs;
+	}
+
+	return 0;
+
+err_free_rxqs:
+	hinic3_free_rxqs(netdev);
+err_free_txqs:
+	hinic3_free_txqs(netdev);
+
+	return err;
+}
+
+static void hinic3_free_txrxqs(struct net_device *netdev)
+{
+	hinic3_free_intr_coalesce(netdev);
+	hinic3_free_rxqs(netdev);
+	hinic3_free_txqs(netdev);
+}
+
+static void hinic3_periodic_work_handler(struct work_struct *work)
+{
+	struct delayed_work *delay = to_delayed_work(work);
+	struct hinic3_nic_dev *nic_dev;
+
+	nic_dev = container_of(delay, struct hinic3_nic_dev, periodic_work);
+	if (test_and_clear_bit(HINIC3_EVENT_WORK_TX_TIMEOUT,
+			       &nic_dev->event_flag))
+		dev_info(nic_dev->hwdev->dev,
+			 "Fault event report, src: %u, level: %u\n",
+			 HINIC3_FAULT_SRC_TX_TIMEOUT,
+			 HINIC3_FAULT_LEVEL_SERIOUS_FLR);
+
+	queue_delayed_work(nic_dev->workq, &nic_dev->periodic_work, HZ);
+}
+
+static int hinic3_init_nic_dev(struct net_device *netdev,
+			       struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct pci_dev *pdev = hwdev->pdev;
+
+	nic_dev->netdev = netdev;
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+	nic_dev->hwdev = hwdev;
+	nic_dev->pdev = pdev;
+
+	nic_dev->msg_enable = HINIC3_DEFAULT_MSG_ENABLE;
+	nic_dev->rx_buf_len = HINIC3_RX_BUF_LEN;
+	nic_dev->lro_replenish_thld = HINIC3_LRO_REPLENISH_THLD;
+	nic_dev->vlan_bitmap = kzalloc(HINIC3_VLAN_BITMAP_SIZE(nic_dev),
+				       GFP_KERNEL);
+	if (!nic_dev->vlan_bitmap)
+		return -ENOMEM;
+
+	nic_dev->nic_svc_cap = hwdev->cfg_mgmt->cap.nic_svc_cap;
+
+	nic_dev->workq = create_singlethread_workqueue(HINIC3_NIC_DEV_WQ_NAME);
+	if (!nic_dev->workq) {
+		dev_err(hwdev->dev, "Failed to initialize nic workqueue\n");
+		kfree(nic_dev->vlan_bitmap);
+		return -ENOMEM;
+	}
+
+	INIT_DELAYED_WORK(&nic_dev->periodic_work,
+			  hinic3_periodic_work_handler);
+
+	INIT_LIST_HEAD(&nic_dev->uc_filter_list);
+	INIT_LIST_HEAD(&nic_dev->mc_filter_list);
+	INIT_WORK(&nic_dev->rx_mode_work, hinic3_set_rx_mode_work);
+
+	return 0;
+}
+
+static int hinic3_sw_init(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	u8 mac_addr[ETH_ALEN];
+	int err;
+
+	mutex_init(&nic_dev->port_state_mutex);
+
+	nic_dev->q_params.sq_depth = HINIC3_SQ_DEPTH;
+	nic_dev->q_params.rq_depth = HINIC3_RQ_DEPTH;
+
+	hinic3_try_to_enable_rss(netdev);
+
+	if (HINIC3_IS_VF(hwdev)) {
+		/* VF driver always uses random MAC address. During VM migration
+		 * to a new device, the new device should learn the VMs old MAC
+		 * rather than provide its own MAC. The product design assumes
+		 * that every VF is susceptible to migration so the device
+		 * avoids offering MAC address to VFs.
+		 */
+		eth_hw_addr_random(netdev);
+	} else {
+		err = hinic3_get_default_mac(hwdev, mac_addr);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to get MAC address\n");
+			goto err_clear_rss_config;
+		}
+		eth_hw_addr_set(netdev, mac_addr);
+	}
+
+	err = hinic3_set_mac(hwdev, netdev->dev_addr, 0,
+			     hinic3_global_func_id(hwdev));
+	/* Failure to set MAC is not a fatal error for VF since its MAC may have
+	 * already been set by PF
+	 */
+	if (err && err != -EADDRINUSE) {
+		dev_err(hwdev->dev, "Failed to set default MAC\n");
+		goto err_clear_rss_config;
+	}
+
+	err = hinic3_alloc_txrxqs(netdev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to alloc qps\n");
+		goto err_del_mac;
+	}
+
+	return 0;
+
+err_del_mac:
+	hinic3_del_mac(hwdev, netdev->dev_addr, 0,
+		       hinic3_global_func_id(hwdev));
+err_clear_rss_config:
+	hinic3_clear_rss_config(netdev);
+
+	return err;
+}
+
+static void hinic3_sw_uninit(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	hinic3_free_txrxqs(netdev);
+	hinic3_clean_mac_list_filter(netdev);
+	hinic3_del_mac(nic_dev->hwdev, netdev->dev_addr, 0,
+		       hinic3_global_func_id(nic_dev->hwdev));
+	hinic3_clear_rss_config(netdev);
+}
+
+static void hinic3_assign_netdev_ops(struct net_device *netdev)
+{
+	hinic3_set_netdev_ops(netdev);
+	hinic3_set_ethtool_ops(netdev);
+}
+
+static void netdev_feature_init(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	netdev_features_t hw_features = 0;
+	netdev_features_t vlan_fts = 0;
+	netdev_features_t cso_fts = 0;
+	netdev_features_t tso_fts = 0;
+	netdev_features_t dft_fts;
+
+	dft_fts = NETIF_F_SG | NETIF_F_HIGHDMA;
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_CSUM))
+		cso_fts |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_SCTP_CRC))
+		cso_fts |= NETIF_F_SCTP_CRC;
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_TSO))
+		tso_fts |= NETIF_F_TSO | NETIF_F_TSO6;
+
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_RX_VLAN_STRIP |
+				HINIC3_NIC_F_TX_VLAN_INSERT))
+		vlan_fts |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
+
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_RX_VLAN_FILTER))
+		vlan_fts |= NETIF_F_HW_VLAN_CTAG_FILTER;
+
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_VXLAN_OFFLOAD))
+		tso_fts |= NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_UDP_TUNNEL_CSUM;
+
+	/* LRO is disabled by default, only set hw features */
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_LRO))
+		hw_features |= NETIF_F_LRO;
+
+	netdev->features |= dft_fts | cso_fts | tso_fts | vlan_fts;
+	netdev->vlan_features |= dft_fts | cso_fts | tso_fts;
+	hw_features |= netdev->hw_features | netdev->features;
+	netdev->hw_features = hw_features;
+	netdev->priv_flags |= IFF_UNICAST_FLT;
+
+	netdev->hw_enc_features |= dft_fts;
+	if (hinic3_test_support(nic_dev, HINIC3_NIC_F_VXLAN_OFFLOAD))
+		netdev->hw_enc_features |= cso_fts | tso_fts | NETIF_F_TSO_ECN;
+}
+
+static int hinic3_set_default_hw_feature(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	int err;
+
+	err = hinic3_set_nic_feature_to_hw(nic_dev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set nic features\n");
+		return err;
+	}
+
+	err = hinic3_set_hw_features(netdev);
+	if (err) {
+		hinic3_update_nic_feature(nic_dev, 0);
+		hinic3_set_nic_feature_to_hw(nic_dev);
+		return err;
+	}
+
+	return 0;
+}
+
+static void hinic3_link_status_change(struct net_device *netdev,
+				      bool link_status_up)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	if (link_status_up) {
+		if (netif_carrier_ok(netdev))
+			return;
+
+		nic_dev->link_status_up = true;
+		netif_carrier_on(netdev);
+		netdev_dbg(netdev, "Link is up\n");
+	} else {
+		if (!netif_carrier_ok(netdev))
+			return;
+
+		nic_dev->link_status_up = false;
+		netif_carrier_off(netdev);
+		netdev_dbg(netdev, "Link is down\n");
+	}
+}
+
+static void hinic3_port_module_event_handler(struct net_device *netdev,
+					     struct hinic3_event_info *event)
+{
+	const char *g_hinic3_module_link_err[LINK_ERR_NUM] = {
+		"Unrecognized module"
+	};
+	struct hinic3_port_module_event *module_event;
+	enum port_module_event_type type;
+	enum link_err_type err_type;
+
+	module_event = (struct hinic3_port_module_event *)event->event_data;
+	type = module_event->type;
+	err_type = module_event->err_type;
+
+	switch (type) {
+	case HINIC3_PORT_MODULE_CABLE_PLUGGED:
+	case HINIC3_PORT_MODULE_CABLE_UNPLUGGED:
+		netdev_info(netdev, "Port module event: Cable %s\n",
+			    type == HINIC3_PORT_MODULE_CABLE_PLUGGED ?
+			    "plugged" : "unplugged");
+		break;
+	case HINIC3_PORT_MODULE_LINK_ERR:
+		if (err_type >= LINK_ERR_NUM) {
+			netdev_info(netdev, "Link failed, Unknown error type: 0x%x\n",
+				    err_type);
+		} else {
+			netdev_info(netdev,
+				    "Link failed, error type: 0x%x: %s\n",
+				    err_type,
+				    g_hinic3_module_link_err[err_type]);
+		}
+		break;
+	default:
+		netdev_err(netdev, "Unknown port module type %d\n", type);
+		break;
+	}
+}
+
+static void hinic3_nic_event(struct auxiliary_device *adev,
+			     struct hinic3_event_info *event)
+{
+	struct hinic3_nic_dev *nic_dev = dev_get_drvdata(&adev->dev);
+	struct net_device *netdev;
+
+	netdev = nic_dev->netdev;
+
+	switch (HINIC3_SRV_EVENT_TYPE(event->service, event->type)) {
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_NIC,
+				   HINIC3_NIC_EVENT_LINK_UP):
+		hinic3_link_status_change(netdev, true);
+		break;
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_NIC,
+				   HINIC3_NIC_EVENT_PORT_MODULE_EVENT):
+		hinic3_port_module_event_handler(netdev, event);
+		break;
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_NIC,
+				   HINIC3_NIC_EVENT_LINK_DOWN):
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_COMM,
+				   HINIC3_COMM_EVENT_FAULT):
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_COMM,
+				   HINIC3_COMM_EVENT_PCIE_LINK_DOWN):
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_COMM,
+				   HINIC3_COMM_EVENT_HEART_LOST):
+	case HINIC3_SRV_EVENT_TYPE(HINIC3_EVENT_SRV_COMM,
+				   HINIC3_COMM_EVENT_MGMT_WATCHDOG):
+		hinic3_link_status_change(netdev, false);
+		break;
+	default:
+		break;
+	}
+}
+
+static void hinic3_free_nic_dev(struct hinic3_nic_dev *nic_dev)
+{
+	destroy_workqueue(nic_dev->workq);
+	kfree(nic_dev->vlan_bitmap);
+}
+
+static int hinic3_nic_probe(struct auxiliary_device *adev,
+			    const struct auxiliary_device_id *id)
+{
+	struct hinic3_hwdev *hwdev = hinic3_adev_get_hwdev(adev);
+	struct pci_dev *pdev = hwdev->pdev;
+	struct hinic3_nic_dev *nic_dev;
+	struct net_device *netdev;
+	u16 max_qps, glb_func_id;
+	int err;
+
+	if (!hinic3_support_nic(hwdev)) {
+		dev_dbg(&adev->dev, "HW doesn't support nic\n");
+		return 0;
+	}
+
+	hinic3_adev_event_register(adev, hinic3_nic_event);
+
+	glb_func_id = hinic3_global_func_id(hwdev);
+	err = hinic3_func_reset(hwdev, glb_func_id, COMM_FUNC_RESET_BIT_NIC);
+	if (err) {
+		dev_err(&adev->dev, "Failed to reset function\n");
+		goto err_unregister_adev_event;
+	}
+
+	max_qps = hinic3_func_max_qnum(hwdev);
+	netdev = alloc_etherdev_mq(sizeof(*nic_dev), max_qps);
+	if (!netdev) {
+		dev_err(&adev->dev, "Failed to allocate netdev\n");
+		err = -ENOMEM;
+		goto err_unregister_adev_event;
+	}
+
+	nic_dev = netdev_priv(netdev);
+	dev_set_drvdata(&adev->dev, nic_dev);
+	err = hinic3_init_nic_dev(netdev, hwdev);
+	if (err)
+		goto err_free_netdev;
+
+	err = hinic3_init_nic_io(nic_dev);
+	if (err)
+		goto err_free_nic_dev;
+
+	err = hinic3_sw_init(netdev);
+	if (err)
+		goto err_free_nic_io;
+
+	hinic3_assign_netdev_ops(netdev);
+
+	netdev_feature_init(netdev);
+	err = hinic3_set_default_hw_feature(netdev);
+	if (err)
+		goto err_uninit_sw;
+
+	queue_delayed_work(nic_dev->workq, &nic_dev->periodic_work, HZ);
+	netif_carrier_off(netdev);
+
+	err = register_netdev(netdev);
+	if (err)
+		goto err_uninit_nic_feature;
+
+	return 0;
+
+err_uninit_nic_feature:
+	disable_delayed_work_sync(&nic_dev->periodic_work);
+	hinic3_update_nic_feature(nic_dev, 0);
+	hinic3_set_nic_feature_to_hw(nic_dev);
+err_uninit_sw:
+	hinic3_sw_uninit(netdev);
+err_free_nic_io:
+	hinic3_free_nic_io(nic_dev);
+err_free_nic_dev:
+	hinic3_free_nic_dev(nic_dev);
+err_free_netdev:
+	free_netdev(netdev);
+err_unregister_adev_event:
+	hinic3_adev_event_unregister(adev);
+	dev_err(&pdev->dev, "NIC service probe failed\n");
+
+	return err;
+}
+
+static void hinic3_nic_remove(struct auxiliary_device *adev)
+{
+	struct hinic3_nic_dev *nic_dev = dev_get_drvdata(&adev->dev);
+	struct net_device *netdev;
+
+	if (!hinic3_support_nic(nic_dev->hwdev))
+		return;
+
+	netdev = nic_dev->netdev;
+	unregister_netdev(netdev);
+
+	disable_delayed_work_sync(&nic_dev->periodic_work);
+	cancel_work_sync(&nic_dev->rx_mode_work);
+	hinic3_free_nic_dev(nic_dev);
+
+	hinic3_update_nic_feature(nic_dev, 0);
+	hinic3_set_nic_feature_to_hw(nic_dev);
+	hinic3_sw_uninit(netdev);
+
+	hinic3_free_nic_io(nic_dev);
+
+	free_netdev(netdev);
+}
+
+static const struct auxiliary_device_id hinic3_nic_id_table[] = {
+	{
+		.name = HINIC3_NIC_DRV_NAME ".nic",
+	},
+	{}
+};
+
+static struct auxiliary_driver hinic3_nic_driver = {
+	.probe    = hinic3_nic_probe,
+	.remove   = hinic3_nic_remove,
+	.suspend  = NULL,
+	.resume   = NULL,
+	.name     = "nic",
+	.id_table = hinic3_nic_id_table,
+};
+
+static __init int hinic3_nic_lld_init(void)
+{
+	int err;
+
+	err = hinic3_lld_init();
+	if (err)
+		return err;
+
+	err = auxiliary_driver_register(&hinic3_nic_driver);
+	if (err) {
+		hinic3_lld_exit();
+		return err;
+	}
+
+	return 0;
+}
+
+static __exit void hinic3_nic_lld_exit(void)
+{
+	auxiliary_driver_unregister(&hinic3_nic_driver);
+
+	hinic3_lld_exit();
+}
+
+module_init(hinic3_nic_lld_init);
+module_exit(hinic3_nic_lld_exit);
+
+MODULE_AUTHOR("Huawei Technologies CO., Ltd");
+MODULE_DESCRIPTION(HINIC3_NIC_DRV_DESC);
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.c

@@ -0,0 +1,928 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/dma-mapping.h>
+
+#include "hinic3_common.h"
+#include "hinic3_csr.h"
+#include "hinic3_eqs.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+
+#define MBOX_INT_DST_AEQN_MASK        GENMASK(11, 10)
+#define MBOX_INT_SRC_RESP_AEQN_MASK   GENMASK(13, 12)
+#define MBOX_INT_STAT_DMA_MASK        GENMASK(19, 14)
+/* TX size, expressed in 4 bytes units */
+#define MBOX_INT_TX_SIZE_MASK         GENMASK(24, 20)
+/* SO_RO == strong order, relaxed order */
+#define MBOX_INT_STAT_DMA_SO_RO_MASK  GENMASK(26, 25)
+#define MBOX_INT_WB_EN_MASK           BIT(28)
+#define MBOX_INT_SET(val, field)  \
+	FIELD_PREP(MBOX_INT_##field##_MASK, val)
+
+#define MBOX_CTRL_TRIGGER_AEQE_MASK   BIT(0)
+#define MBOX_CTRL_TX_STATUS_MASK      BIT(1)
+#define MBOX_CTRL_DST_FUNC_MASK       GENMASK(28, 16)
+#define MBOX_CTRL_SET(val, field)  \
+	FIELD_PREP(MBOX_CTRL_##field##_MASK, val)
+
+#define MBOX_MSG_POLLING_TIMEOUT_MS  8000 // send msg seg timeout
+#define MBOX_COMP_POLLING_TIMEOUT_MS 40000 // response
+
+#define MBOX_MAX_BUF_SZ           2048
+#define MBOX_HEADER_SZ            8
+
+/* MBOX size is 64B, 8B for mbox_header, 8B reserved */
+#define MBOX_SEG_LEN              48
+#define MBOX_SEG_LEN_ALIGN        4
+#define MBOX_WB_STATUS_LEN        16
+
+#define MBOX_SEQ_ID_START_VAL     0
+#define MBOX_SEQ_ID_MAX_VAL       42
+#define MBOX_LAST_SEG_MAX_LEN  \
+	(MBOX_MAX_BUF_SZ - MBOX_SEQ_ID_MAX_VAL * MBOX_SEG_LEN)
+
+/* mbox write back status is 16B, only first 4B is used */
+#define MBOX_WB_STATUS_ERRCODE_MASK      0xFFFF
+#define MBOX_WB_STATUS_MASK              0xFF
+#define MBOX_WB_ERROR_CODE_MASK          0xFF00
+#define MBOX_WB_STATUS_FINISHED_SUCCESS  0xFF
+#define MBOX_WB_STATUS_NOT_FINISHED      0x00
+
+#define MBOX_STATUS_FINISHED(wb)  \
+	((FIELD_GET(MBOX_WB_STATUS_MASK, (wb))) != MBOX_WB_STATUS_NOT_FINISHED)
+#define MBOX_STATUS_SUCCESS(wb)  \
+	((FIELD_GET(MBOX_WB_STATUS_MASK, (wb))) ==  \
+	MBOX_WB_STATUS_FINISHED_SUCCESS)
+#define MBOX_STATUS_ERRCODE(wb)  \
+	((wb) & MBOX_WB_ERROR_CODE_MASK)
+
+#define MBOX_DMA_MSG_QUEUE_DEPTH    32
+#define MBOX_AREA(hwif)  \
+	((hwif)->cfg_regs_base + HINIC3_FUNC_CSR_MAILBOX_DATA_OFF)
+
+#define MBOX_MQ_CI_OFFSET  \
+	(HINIC3_CFG_REGS_FLAG + HINIC3_FUNC_CSR_MAILBOX_DATA_OFF + \
+	 MBOX_HEADER_SZ + MBOX_SEG_LEN)
+
+#define MBOX_MQ_SYNC_CI_MASK   GENMASK(7, 0)
+#define MBOX_MQ_ASYNC_CI_MASK  GENMASK(15, 8)
+#define MBOX_MQ_CI_GET(val, field)  \
+	FIELD_GET(MBOX_MQ_##field##_CI_MASK, val)
+
+#define MBOX_MGMT_FUNC_ID         0x1FFF
+#define MBOX_COMM_F_MBOX_SEGMENT  BIT(3)
+
+static u8 *get_mobx_body_from_hdr(u8 *header)
+{
+	return header + MBOX_HEADER_SZ;
+}
+
+static struct hinic3_msg_desc *get_mbox_msg_desc(struct hinic3_mbox *mbox,
+						 enum mbox_msg_direction_type dir,
+						 u16 src_func_id)
+{
+	struct hinic3_hwdev *hwdev = mbox->hwdev;
+	struct hinic3_msg_channel *msg_ch;
+
+	if (src_func_id == MBOX_MGMT_FUNC_ID) {
+		msg_ch = &mbox->mgmt_msg;
+	} else if (HINIC3_IS_VF(hwdev)) {
+		/* message from pf */
+		msg_ch = mbox->func_msg;
+		if (src_func_id != hinic3_pf_id_of_vf(hwdev) || !msg_ch)
+			return NULL;
+	} else {
+		return NULL;
+	}
+
+	return (dir == MBOX_MSG_SEND) ?
+		&msg_ch->recv_msg : &msg_ch->resp_msg;
+}
+
+static void resp_mbox_handler(struct hinic3_mbox *mbox,
+			      const struct hinic3_msg_desc *msg_desc)
+{
+	spin_lock(&mbox->mbox_lock);
+	if (msg_desc->msg_info.msg_id == mbox->send_msg_id &&
+	    mbox->event_flag == MBOX_EVENT_START)
+		mbox->event_flag = MBOX_EVENT_SUCCESS;
+	spin_unlock(&mbox->mbox_lock);
+}
+
+static bool mbox_segment_valid(struct hinic3_mbox *mbox,
+			       struct hinic3_msg_desc *msg_desc,
+			       __le64 mbox_header)
+{
+	u8 seq_id, seg_len, msg_id, mod;
+	__le16 src_func_idx, cmd;
+
+	seq_id = MBOX_MSG_HEADER_GET(mbox_header, SEQID);
+	seg_len = MBOX_MSG_HEADER_GET(mbox_header, SEG_LEN);
+	msg_id = MBOX_MSG_HEADER_GET(mbox_header, MSG_ID);
+	mod = MBOX_MSG_HEADER_GET(mbox_header, MODULE);
+	cmd = cpu_to_le16(MBOX_MSG_HEADER_GET(mbox_header, CMD));
+	src_func_idx = cpu_to_le16(MBOX_MSG_HEADER_GET(mbox_header,
+						       SRC_GLB_FUNC_IDX));
+
+	if (seq_id > MBOX_SEQ_ID_MAX_VAL || seg_len > MBOX_SEG_LEN ||
+	    (seq_id == MBOX_SEQ_ID_MAX_VAL && seg_len > MBOX_LAST_SEG_MAX_LEN))
+		goto err_seg;
+
+	if (seq_id == 0) {
+		msg_desc->seq_id = seq_id;
+		msg_desc->msg_info.msg_id = msg_id;
+		msg_desc->mod = mod;
+		msg_desc->cmd = cmd;
+	} else {
+		if (seq_id != msg_desc->seq_id + 1 ||
+		    msg_id != msg_desc->msg_info.msg_id ||
+		    mod != msg_desc->mod || cmd != msg_desc->cmd)
+			goto err_seg;
+
+		msg_desc->seq_id = seq_id;
+	}
+
+	return true;
+
+err_seg:
+	dev_err(mbox->hwdev->dev,
+		"Mailbox segment check failed, src func id: 0x%x, front seg info: seq id: 0x%x, msg id: 0x%x, mod: 0x%x, cmd: 0x%x\n",
+		src_func_idx, msg_desc->seq_id, msg_desc->msg_info.msg_id,
+		msg_desc->mod, msg_desc->cmd);
+	dev_err(mbox->hwdev->dev,
+		"Current seg info: seg len: 0x%x, seq id: 0x%x, msg id: 0x%x, mod: 0x%x, cmd: 0x%x\n",
+		seg_len, seq_id, msg_id, mod, cmd);
+
+	return false;
+}
+
+static void recv_mbox_handler(struct hinic3_mbox *mbox,
+			      u8 *header, struct hinic3_msg_desc *msg_desc)
+{
+	__le64 mbox_header = *((__force __le64 *)header);
+	u8 *mbox_body = get_mobx_body_from_hdr(header);
+	u8 seq_id, seg_len;
+	int pos;
+
+	if (!mbox_segment_valid(mbox, msg_desc, mbox_header)) {
+		msg_desc->seq_id = MBOX_SEQ_ID_MAX_VAL;
+		return;
+	}
+
+	seq_id = MBOX_MSG_HEADER_GET(mbox_header, SEQID);
+	seg_len = MBOX_MSG_HEADER_GET(mbox_header, SEG_LEN);
+
+	pos = seq_id * MBOX_SEG_LEN;
+	memcpy(msg_desc->msg + pos, mbox_body, seg_len);
+
+	if (!MBOX_MSG_HEADER_GET(mbox_header, LAST))
+		return;
+
+	msg_desc->msg_len = cpu_to_le16(MBOX_MSG_HEADER_GET(mbox_header,
+							    MSG_LEN));
+	msg_desc->msg_info.status = MBOX_MSG_HEADER_GET(mbox_header, STATUS);
+
+	if (MBOX_MSG_HEADER_GET(mbox_header, DIRECTION) == MBOX_MSG_RESP)
+		resp_mbox_handler(mbox, msg_desc);
+}
+
+void hinic3_mbox_func_aeqe_handler(struct hinic3_hwdev *hwdev, u8 *header,
+				   u8 size)
+{
+	__le64 mbox_header = *((__force __le64 *)header);
+	enum mbox_msg_direction_type dir;
+	struct hinic3_msg_desc *msg_desc;
+	struct hinic3_mbox *mbox;
+	u16 src_func_id;
+
+	mbox = hwdev->mbox;
+	dir = MBOX_MSG_HEADER_GET(mbox_header, DIRECTION);
+	src_func_id = MBOX_MSG_HEADER_GET(mbox_header, SRC_GLB_FUNC_IDX);
+	msg_desc = get_mbox_msg_desc(mbox, dir, src_func_id);
+	if (!msg_desc) {
+		dev_err(mbox->hwdev->dev,
+			"Mailbox source function id: %u is invalid for current function\n",
+			src_func_id);
+		return;
+	}
+	recv_mbox_handler(mbox, header, msg_desc);
+}
+
+static int init_mbox_dma_queue(struct hinic3_hwdev *hwdev,
+			       struct mbox_dma_queue *mq)
+{
+	u32 size;
+
+	mq->depth = MBOX_DMA_MSG_QUEUE_DEPTH;
+	mq->prod_idx = 0;
+	mq->cons_idx = 0;
+
+	size = mq->depth * MBOX_MAX_BUF_SZ;
+	mq->dma_buf_vaddr = dma_alloc_coherent(hwdev->dev, size,
+					       &mq->dma_buf_paddr,
+					       GFP_KERNEL);
+	if (!mq->dma_buf_vaddr)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void uninit_mbox_dma_queue(struct hinic3_hwdev *hwdev,
+				  struct mbox_dma_queue *mq)
+{
+	dma_free_coherent(hwdev->dev, mq->depth * MBOX_MAX_BUF_SZ,
+			  mq->dma_buf_vaddr, mq->dma_buf_paddr);
+}
+
+static int hinic3_init_mbox_dma_queue(struct hinic3_mbox *mbox)
+{
+	u32 val;
+	int err;
+
+	err = init_mbox_dma_queue(mbox->hwdev, &mbox->sync_msg_queue);
+	if (err)
+		return err;
+
+	err = init_mbox_dma_queue(mbox->hwdev, &mbox->async_msg_queue);
+	if (err) {
+		uninit_mbox_dma_queue(mbox->hwdev, &mbox->sync_msg_queue);
+		return err;
+	}
+
+	val = hinic3_hwif_read_reg(mbox->hwdev->hwif, MBOX_MQ_CI_OFFSET);
+	val &= ~MBOX_MQ_SYNC_CI_MASK;
+	val &= ~MBOX_MQ_ASYNC_CI_MASK;
+	hinic3_hwif_write_reg(mbox->hwdev->hwif, MBOX_MQ_CI_OFFSET, val);
+
+	return 0;
+}
+
+static void hinic3_uninit_mbox_dma_queue(struct hinic3_mbox *mbox)
+{
+	uninit_mbox_dma_queue(mbox->hwdev, &mbox->sync_msg_queue);
+	uninit_mbox_dma_queue(mbox->hwdev, &mbox->async_msg_queue);
+}
+
+static int alloc_mbox_msg_channel(struct hinic3_msg_channel *msg_ch)
+{
+	msg_ch->resp_msg.msg = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
+	if (!msg_ch->resp_msg.msg)
+		return -ENOMEM;
+
+	msg_ch->recv_msg.msg = kzalloc(MBOX_MAX_BUF_SZ, GFP_KERNEL);
+	if (!msg_ch->recv_msg.msg) {
+		kfree(msg_ch->resp_msg.msg);
+		return -ENOMEM;
+	}
+
+	msg_ch->resp_msg.seq_id = MBOX_SEQ_ID_MAX_VAL;
+	msg_ch->recv_msg.seq_id = MBOX_SEQ_ID_MAX_VAL;
+
+	return 0;
+}
+
+static void free_mbox_msg_channel(struct hinic3_msg_channel *msg_ch)
+{
+	kfree(msg_ch->recv_msg.msg);
+	kfree(msg_ch->resp_msg.msg);
+}
+
+static int init_mgmt_msg_channel(struct hinic3_mbox *mbox)
+{
+	int err;
+
+	err = alloc_mbox_msg_channel(&mbox->mgmt_msg);
+	if (err) {
+		dev_err(mbox->hwdev->dev, "Failed to alloc mgmt message channel\n");
+		return err;
+	}
+
+	err = hinic3_init_mbox_dma_queue(mbox);
+	if (err) {
+		dev_err(mbox->hwdev->dev, "Failed to init mbox dma queue\n");
+		free_mbox_msg_channel(&mbox->mgmt_msg);
+		return err;
+	}
+
+	return 0;
+}
+
+static void uninit_mgmt_msg_channel(struct hinic3_mbox *mbox)
+{
+	hinic3_uninit_mbox_dma_queue(mbox);
+	free_mbox_msg_channel(&mbox->mgmt_msg);
+}
+
+static int hinic3_init_func_mbox_msg_channel(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_mbox *mbox;
+	int err;
+
+	mbox = hwdev->mbox;
+	mbox->func_msg = kzalloc_obj(*mbox->func_msg);
+	if (!mbox->func_msg)
+		return -ENOMEM;
+
+	err = alloc_mbox_msg_channel(mbox->func_msg);
+	if (err)
+		goto err_free_func_msg;
+
+	return 0;
+
+err_free_func_msg:
+	kfree(mbox->func_msg);
+	mbox->func_msg = NULL;
+
+	return err;
+}
+
+static void hinic3_uninit_func_mbox_msg_channel(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_mbox *mbox = hwdev->mbox;
+
+	free_mbox_msg_channel(mbox->func_msg);
+	kfree(mbox->func_msg);
+	mbox->func_msg = NULL;
+}
+
+static void prepare_send_mbox(struct hinic3_mbox *mbox)
+{
+	struct hinic3_send_mbox *send_mbox = &mbox->send_mbox;
+
+	send_mbox->data = MBOX_AREA(mbox->hwdev->hwif);
+}
+
+static int alloc_mbox_wb_status(struct hinic3_mbox *mbox)
+{
+	struct hinic3_send_mbox *send_mbox = &mbox->send_mbox;
+	struct hinic3_hwdev *hwdev = mbox->hwdev;
+	u32 addr_h, addr_l;
+
+	send_mbox->wb_vaddr = dma_alloc_coherent(hwdev->dev,
+						 MBOX_WB_STATUS_LEN,
+						 &send_mbox->wb_paddr,
+						 GFP_KERNEL);
+	if (!send_mbox->wb_vaddr)
+		return -ENOMEM;
+
+	addr_h = upper_32_bits(send_mbox->wb_paddr);
+	addr_l = lower_32_bits(send_mbox->wb_paddr);
+	hinic3_hwif_write_reg(hwdev->hwif, HINIC3_FUNC_CSR_MAILBOX_RESULT_H_OFF,
+			      addr_h);
+	hinic3_hwif_write_reg(hwdev->hwif, HINIC3_FUNC_CSR_MAILBOX_RESULT_L_OFF,
+			      addr_l);
+
+	return 0;
+}
+
+static void free_mbox_wb_status(struct hinic3_mbox *mbox)
+{
+	struct hinic3_send_mbox *send_mbox = &mbox->send_mbox;
+	struct hinic3_hwdev *hwdev = mbox->hwdev;
+
+	hinic3_hwif_write_reg(hwdev->hwif, HINIC3_FUNC_CSR_MAILBOX_RESULT_H_OFF,
+			      0);
+	hinic3_hwif_write_reg(hwdev->hwif, HINIC3_FUNC_CSR_MAILBOX_RESULT_L_OFF,
+			      0);
+
+	dma_free_coherent(hwdev->dev, MBOX_WB_STATUS_LEN,
+			  send_mbox->wb_vaddr, send_mbox->wb_paddr);
+}
+
+static int hinic3_mbox_pre_init(struct hinic3_hwdev *hwdev,
+				struct hinic3_mbox *mbox)
+{
+	mbox->hwdev = hwdev;
+	mutex_init(&mbox->mbox_send_lock);
+	mutex_init(&mbox->mbox_seg_send_lock);
+	spin_lock_init(&mbox->mbox_lock);
+
+	mbox->workq = create_singlethread_workqueue(HINIC3_MBOX_WQ_NAME);
+	if (!mbox->workq) {
+		dev_err(hwdev->dev, "Failed to initialize MBOX workqueue\n");
+		return -ENOMEM;
+	}
+	hwdev->mbox = mbox;
+
+	return 0;
+}
+
+int hinic3_init_mbox(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_mbox *mbox;
+	int err;
+
+	mbox = kzalloc_obj(*mbox);
+	if (!mbox)
+		return -ENOMEM;
+
+	err = hinic3_mbox_pre_init(hwdev, mbox);
+	if (err)
+		goto err_free_mbox;
+
+	err = init_mgmt_msg_channel(mbox);
+	if (err)
+		goto err_destroy_workqueue;
+
+	if (HINIC3_IS_VF(hwdev)) {
+		/* VF to PF mbox message channel */
+		err = hinic3_init_func_mbox_msg_channel(hwdev);
+		if (err)
+			goto err_uninit_mgmt_msg_ch;
+	}
+
+	err = alloc_mbox_wb_status(mbox);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to alloc mbox write back status\n");
+		goto err_uninit_func_mbox_msg_ch;
+	}
+
+	prepare_send_mbox(mbox);
+
+	return 0;
+
+err_uninit_func_mbox_msg_ch:
+	if (HINIC3_IS_VF(hwdev))
+		hinic3_uninit_func_mbox_msg_channel(hwdev);
+err_uninit_mgmt_msg_ch:
+	uninit_mgmt_msg_channel(mbox);
+err_destroy_workqueue:
+	destroy_workqueue(mbox->workq);
+err_free_mbox:
+	kfree(mbox);
+
+	return err;
+}
+
+void hinic3_free_mbox(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_mbox *mbox = hwdev->mbox;
+
+	destroy_workqueue(mbox->workq);
+	free_mbox_wb_status(mbox);
+	if (HINIC3_IS_VF(hwdev))
+		hinic3_uninit_func_mbox_msg_channel(hwdev);
+	uninit_mgmt_msg_channel(mbox);
+	kfree(mbox);
+}
+
+#define MBOX_DMA_MSG_INIT_XOR_VAL    0x5a5a5a5a
+#define MBOX_XOR_DATA_ALIGN          4
+static u32 mbox_dma_msg_xor(u32 *data, u32 msg_len)
+{
+	u32 xor = MBOX_DMA_MSG_INIT_XOR_VAL;
+	u32 dw_len = msg_len / sizeof(u32);
+	u32 i;
+
+	for (i = 0; i < dw_len; i++)
+		xor ^= data[i];
+
+	return xor;
+}
+
+#define MBOX_MQ_ID_MASK(mq, idx)  ((idx) & ((mq)->depth - 1))
+
+static bool is_msg_queue_full(struct mbox_dma_queue *mq)
+{
+	return MBOX_MQ_ID_MASK(mq, (mq)->prod_idx + 1) ==
+	       MBOX_MQ_ID_MASK(mq, (mq)->cons_idx);
+}
+
+static int mbox_prepare_dma_entry(struct hinic3_mbox *mbox,
+				  struct mbox_dma_queue *mq,
+				  struct mbox_dma_msg *dma_msg,
+				  const void *msg, u32 msg_len)
+{
+	u64 dma_addr, offset;
+	void *dma_vaddr;
+
+	if (is_msg_queue_full(mq)) {
+		dev_err(mbox->hwdev->dev, "Mbox sync message queue is busy, pi: %u, ci: %u\n",
+			mq->prod_idx, MBOX_MQ_ID_MASK(mq, mq->cons_idx));
+		return -EBUSY;
+	}
+
+	/* copy data to DMA buffer */
+	offset = mq->prod_idx * MBOX_MAX_BUF_SZ;
+	dma_vaddr = (u8 *)mq->dma_buf_vaddr + offset;
+	memcpy(dma_vaddr, msg, msg_len);
+	dma_addr = mq->dma_buf_paddr + offset;
+	dma_msg->dma_addr_high = cpu_to_le32(upper_32_bits(dma_addr));
+	dma_msg->dma_addr_low = cpu_to_le32(lower_32_bits(dma_addr));
+	dma_msg->msg_len = cpu_to_le32(msg_len);
+	/* The firmware obtains message based on 4B alignment. */
+	dma_msg->xor = cpu_to_le32(mbox_dma_msg_xor(dma_vaddr,
+						    ALIGN(msg_len, MBOX_XOR_DATA_ALIGN)));
+	mq->prod_idx++;
+	mq->prod_idx = MBOX_MQ_ID_MASK(mq, mq->prod_idx);
+
+	return 0;
+}
+
+static int mbox_prepare_dma_msg(struct hinic3_mbox *mbox,
+				enum mbox_msg_ack_type ack_type,
+				struct mbox_dma_msg *dma_msg, const void *msg,
+				u32 msg_len)
+{
+	struct mbox_dma_queue *mq;
+	u32 val;
+
+	val = hinic3_hwif_read_reg(mbox->hwdev->hwif, MBOX_MQ_CI_OFFSET);
+	if (ack_type == MBOX_MSG_ACK) {
+		mq = &mbox->sync_msg_queue;
+		mq->cons_idx = MBOX_MQ_CI_GET(val, SYNC);
+	} else {
+		mq = &mbox->async_msg_queue;
+		mq->cons_idx = MBOX_MQ_CI_GET(val, ASYNC);
+	}
+
+	return mbox_prepare_dma_entry(mbox, mq, dma_msg, msg, msg_len);
+}
+
+static void clear_mbox_status(struct hinic3_send_mbox *mbox)
+{
+	__be64 *wb_status = mbox->wb_vaddr;
+
+	*wb_status = 0;
+	/* clear mailbox write back status */
+	wmb();
+}
+
+static void mbox_dword_write(const void *src, void __iomem *dst, u32 count)
+{
+	const __le32 *src32 = src;
+	u32 __iomem *dst32 = dst;
+	u32 i;
+
+	/* Data written to mbox is arranged in structs with little endian fields
+	 * but when written to HW every dword (32bits) should be swapped since
+	 * the HW will swap it again.
+	 */
+	for (i = 0; i < count; i++)
+		__raw_writel(swab32((__force __u32)src32[i]), dst32 + i);
+}
+
+static void mbox_copy_header(struct hinic3_hwdev *hwdev,
+			     struct hinic3_send_mbox *mbox, __le64 *header)
+{
+	mbox_dword_write(header, mbox->data, MBOX_HEADER_SZ / sizeof(__le32));
+}
+
+static void mbox_copy_send_data(struct hinic3_hwdev *hwdev,
+				struct hinic3_send_mbox *mbox, void *seg,
+				u32 seg_len)
+{
+	u32 __iomem *dst = (u32 __iomem *)(mbox->data + MBOX_HEADER_SZ);
+	u32 count, leftover, last_dword;
+	const __le32 *src = seg;
+
+	count = seg_len / sizeof(u32);
+	leftover = seg_len % sizeof(u32);
+	if (count > 0)
+		mbox_dword_write(src, dst, count);
+
+	if (leftover > 0) {
+		last_dword = 0;
+		memcpy(&last_dword, src + count, leftover);
+		mbox_dword_write(&last_dword, dst + count, 1);
+	}
+}
+
+static void write_mbox_msg_attr(struct hinic3_mbox *mbox,
+				u16 dst_func, u16 dst_aeqn, u32 seg_len)
+{
+	struct hinic3_hwif *hwif = mbox->hwdev->hwif;
+	u32 mbox_int, mbox_ctrl, tx_size;
+	u16 func = dst_func;
+
+	/* VF can send non-management messages only to PF. We set DST_FUNC field
+	 * to 0 since HW will ignore it anyway.
+	 */
+	if (HINIC3_IS_VF(mbox->hwdev) && dst_func != MBOX_MGMT_FUNC_ID)
+		func = 0;
+	tx_size = ALIGN(seg_len + MBOX_HEADER_SZ, MBOX_SEG_LEN_ALIGN) >> 2;
+
+	mbox_int = MBOX_INT_SET(dst_aeqn, DST_AEQN) |
+		   MBOX_INT_SET(0, STAT_DMA) |
+		   MBOX_INT_SET(tx_size, TX_SIZE) |
+		   MBOX_INT_SET(0, STAT_DMA_SO_RO) |
+		   MBOX_INT_SET(1, WB_EN);
+
+	mbox_ctrl = MBOX_CTRL_SET(1, TX_STATUS) |
+		    MBOX_CTRL_SET(0, TRIGGER_AEQE) |
+		    MBOX_CTRL_SET(func, DST_FUNC);
+
+	hinic3_hwif_write_reg(hwif, HINIC3_FUNC_CSR_MAILBOX_INT_OFF, mbox_int);
+	hinic3_hwif_write_reg(hwif, HINIC3_FUNC_CSR_MAILBOX_CONTROL_OFF,
+			      mbox_ctrl);
+}
+
+static void hinic3_dump_mbox_reg(struct hinic3_hwdev *hwdev)
+{
+	u32 val;
+
+	val = hinic3_hwif_read_reg(hwdev->hwif,
+				   HINIC3_FUNC_CSR_MAILBOX_CONTROL_OFF);
+	dev_err(hwdev->dev, "Mailbox control reg: 0x%x\n", val);
+	val = hinic3_hwif_read_reg(hwdev->hwif,
+				   HINIC3_FUNC_CSR_MAILBOX_INT_OFF);
+	dev_err(hwdev->dev, "Mailbox interrupt offset: 0x%x\n", val);
+}
+
+static u16 get_mbox_status(const struct hinic3_send_mbox *mbox)
+{
+	__be64 *wb_status = mbox->wb_vaddr;
+	u64 wb_val;
+
+	wb_val = be64_to_cpu(*wb_status);
+	/* verify reading before check */
+	rmb();
+
+	return wb_val & MBOX_WB_STATUS_ERRCODE_MASK;
+}
+
+static enum hinic3_wait_return check_mbox_wb_status(void *priv_data)
+{
+	struct hinic3_mbox *mbox = priv_data;
+	u16 wb_status;
+
+	if (!mbox->hwdev->chip_present_flag)
+		return HINIC3_WAIT_PROCESS_ERR;
+
+	wb_status = get_mbox_status(&mbox->send_mbox);
+
+	return MBOX_STATUS_FINISHED(wb_status) ?
+	       HINIC3_WAIT_PROCESS_CPL : HINIC3_WAIT_PROCESS_WAITING;
+}
+
+static int send_mbox_seg(struct hinic3_mbox *mbox, __le64 header,
+			 u16 dst_func, void *seg, u32 seg_len, void *msg_info)
+{
+	struct hinic3_send_mbox *send_mbox = &mbox->send_mbox;
+	struct hinic3_hwdev *hwdev = mbox->hwdev;
+	u8 num_aeqs = hwdev->hwif->attr.num_aeqs;
+	enum mbox_msg_direction_type dir;
+	u16 dst_aeqn, wb_status, errcode;
+	int err;
+
+	/* mbox to mgmt cpu, hardware doesn't care about dst aeq id */
+	if (num_aeqs > MBOX_MSG_AEQ_FOR_MBOX) {
+		dir = MBOX_MSG_HEADER_GET(header, DIRECTION);
+		dst_aeqn = (dir == MBOX_MSG_SEND) ?
+			   MBOX_MSG_AEQ_FOR_EVENT : MBOX_MSG_AEQ_FOR_MBOX;
+	} else {
+		dst_aeqn = 0;
+	}
+
+	clear_mbox_status(send_mbox);
+	mbox_copy_header(hwdev, send_mbox, &header);
+	mbox_copy_send_data(hwdev, send_mbox, seg, seg_len);
+	write_mbox_msg_attr(mbox, dst_func, dst_aeqn, seg_len);
+
+	err = hinic3_wait_for_timeout(mbox, check_mbox_wb_status,
+				      MBOX_MSG_POLLING_TIMEOUT_MS,
+				      USEC_PER_MSEC);
+	wb_status = get_mbox_status(send_mbox);
+	if (err) {
+		dev_err(hwdev->dev, "Send mailbox segment timeout, wb status: 0x%x\n",
+			wb_status);
+		hinic3_dump_mbox_reg(hwdev);
+		return err;
+	}
+
+	if (!MBOX_STATUS_SUCCESS(wb_status)) {
+		dev_err(hwdev->dev,
+			"Send mailbox segment to function %u error, wb status: 0x%x\n",
+			dst_func, wb_status);
+		errcode = MBOX_STATUS_ERRCODE(wb_status);
+		return errcode ? errcode : -EFAULT;
+	}
+
+	return 0;
+}
+
+static int send_mbox_msg(struct hinic3_mbox *mbox, u8 mod, u16 cmd,
+			 const void *msg, u32 msg_len, u16 dst_func,
+			 enum mbox_msg_direction_type direction,
+			 enum mbox_msg_ack_type ack_type,
+			 struct mbox_msg_info *msg_info)
+{
+	enum mbox_msg_data_type data_type = MBOX_MSG_DATA_INLINE;
+	struct hinic3_hwdev *hwdev = mbox->hwdev;
+	struct mbox_dma_msg dma_msg;
+	u32 seg_len = MBOX_SEG_LEN;
+	__le64 header = 0;
+	u32 seq_id = 0;
+	u16 rsp_aeq_id;
+	u8 *msg_seg;
+	int err = 0;
+	u32 left;
+
+	if (hwdev->hwif->attr.num_aeqs > MBOX_MSG_AEQ_FOR_MBOX)
+		rsp_aeq_id = MBOX_MSG_AEQ_FOR_MBOX;
+	else
+		rsp_aeq_id = 0;
+
+	mutex_lock(&mbox->mbox_seg_send_lock);
+
+	if (dst_func == MBOX_MGMT_FUNC_ID &&
+	    !(hwdev->features[0] & MBOX_COMM_F_MBOX_SEGMENT)) {
+		err = mbox_prepare_dma_msg(mbox, ack_type, &dma_msg,
+					   msg, msg_len);
+		if (err)
+			goto err_send;
+
+		msg = &dma_msg;
+		msg_len = sizeof(dma_msg);
+		data_type = MBOX_MSG_DATA_DMA;
+	}
+
+	msg_seg = (u8 *)msg;
+	left = msg_len;
+
+	header = cpu_to_le64(MBOX_MSG_HEADER_SET(msg_len, MSG_LEN) |
+			     MBOX_MSG_HEADER_SET(mod, MODULE) |
+			     MBOX_MSG_HEADER_SET(seg_len, SEG_LEN) |
+			     MBOX_MSG_HEADER_SET(ack_type, NO_ACK) |
+			     MBOX_MSG_HEADER_SET(data_type, DATA_TYPE) |
+			     MBOX_MSG_HEADER_SET(MBOX_SEQ_ID_START_VAL, SEQID) |
+			     MBOX_MSG_HEADER_SET(direction, DIRECTION) |
+			     MBOX_MSG_HEADER_SET(cmd, CMD) |
+			     MBOX_MSG_HEADER_SET(msg_info->msg_id, MSG_ID) |
+			     MBOX_MSG_HEADER_SET(rsp_aeq_id, AEQ_ID) |
+			     MBOX_MSG_HEADER_SET(MBOX_MSG_FROM_MBOX, SOURCE) |
+			     MBOX_MSG_HEADER_SET(!!msg_info->status, STATUS));
+
+	while (!(MBOX_MSG_HEADER_GET(header, LAST))) {
+		if (left <= MBOX_SEG_LEN) {
+			header &= cpu_to_le64(~MBOX_MSG_HEADER_SEG_LEN_MASK);
+			header |=
+				cpu_to_le64(MBOX_MSG_HEADER_SET(left, SEG_LEN) |
+					    MBOX_MSG_HEADER_SET(1, LAST));
+			seg_len = left;
+		}
+
+		err = send_mbox_seg(mbox, header, dst_func, msg_seg,
+				    seg_len, msg_info);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to send mbox seg, seq_id=0x%llx\n",
+				MBOX_MSG_HEADER_GET(header, SEQID));
+			goto err_send;
+		}
+
+		left -= MBOX_SEG_LEN;
+		msg_seg += MBOX_SEG_LEN;
+		seq_id++;
+		header &= cpu_to_le64(~MBOX_MSG_HEADER_SEG_LEN_MASK);
+		header |= cpu_to_le64(MBOX_MSG_HEADER_SET(seq_id, SEQID));
+	}
+
+err_send:
+	mutex_unlock(&mbox->mbox_seg_send_lock);
+
+	return err;
+}
+
+static void set_mbox_to_func_event(struct hinic3_mbox *mbox,
+				   enum mbox_event_state event_flag)
+{
+	spin_lock(&mbox->mbox_lock);
+	mbox->event_flag = event_flag;
+	spin_unlock(&mbox->mbox_lock);
+}
+
+static enum hinic3_wait_return check_mbox_msg_finish(void *priv_data)
+{
+	struct hinic3_mbox *mbox = priv_data;
+
+	if (!mbox->hwdev->chip_present_flag)
+		return HINIC3_WAIT_PROCESS_ERR;
+
+	return (mbox->event_flag == MBOX_EVENT_SUCCESS) ?
+		HINIC3_WAIT_PROCESS_CPL : HINIC3_WAIT_PROCESS_WAITING;
+}
+
+static int wait_mbox_msg_completion(struct hinic3_mbox *mbox,
+				    u32 timeout)
+{
+	u32 wait_time;
+	int err;
+
+	wait_time = (timeout != 0) ? timeout : MBOX_COMP_POLLING_TIMEOUT_MS;
+	err = hinic3_wait_for_timeout(mbox, check_mbox_msg_finish,
+				      wait_time, USEC_PER_MSEC);
+	if (err) {
+		set_mbox_to_func_event(mbox, MBOX_EVENT_TIMEOUT);
+		return err;
+	}
+	set_mbox_to_func_event(mbox, MBOX_EVENT_END);
+
+	return 0;
+}
+
+int hinic3_send_mbox_to_mgmt(struct hinic3_hwdev *hwdev, u8 mod, u16 cmd,
+			     const struct mgmt_msg_params *msg_params)
+{
+	struct hinic3_mbox *mbox = hwdev->mbox;
+	struct mbox_msg_info msg_info = {};
+	struct hinic3_msg_desc *msg_desc;
+	u32 msg_len;
+	int err;
+
+	if (!hwdev->chip_present_flag)
+		return -EPERM;
+
+	/* expect response message */
+	msg_desc = get_mbox_msg_desc(mbox, MBOX_MSG_RESP, MBOX_MGMT_FUNC_ID);
+	mutex_lock(&mbox->mbox_send_lock);
+	msg_info.msg_id = (mbox->send_msg_id + 1) & 0xF;
+	mbox->send_msg_id = msg_info.msg_id;
+	set_mbox_to_func_event(mbox, MBOX_EVENT_START);
+
+	err = send_mbox_msg(mbox, mod, cmd, msg_params->buf_in,
+			    msg_params->in_size, MBOX_MGMT_FUNC_ID,
+			    MBOX_MSG_SEND, MBOX_MSG_ACK, &msg_info);
+	if (err) {
+		dev_err(hwdev->dev, "Send mailbox mod %u, cmd %u failed, msg_id: %u, err: %d\n",
+			mod, cmd, msg_info.msg_id, err);
+		set_mbox_to_func_event(mbox, MBOX_EVENT_FAIL);
+		goto err_send;
+	}
+
+	if (wait_mbox_msg_completion(mbox, msg_params->timeout_ms)) {
+		dev_err(hwdev->dev,
+			"Send mbox msg timeout, msg_id: %u\n", msg_info.msg_id);
+		hinic3_dump_aeq_info(mbox->hwdev);
+		err = -ETIMEDOUT;
+		goto err_send;
+	}
+
+	if (mod != msg_desc->mod || cmd != le16_to_cpu(msg_desc->cmd)) {
+		dev_err(hwdev->dev,
+			"Invalid response mbox message, mod: 0x%x, cmd: 0x%x, expect mod: 0x%x, cmd: 0x%x\n",
+			msg_desc->mod, msg_desc->cmd, mod, cmd);
+		err = -EFAULT;
+		goto err_send;
+	}
+
+	if (msg_desc->msg_info.status) {
+		err = msg_desc->msg_info.status;
+		goto err_send;
+	}
+
+	if (msg_params->buf_out) {
+		msg_len = le16_to_cpu(msg_desc->msg_len);
+		if (msg_len != msg_params->expected_out_size) {
+			dev_err(hwdev->dev,
+				"Invalid response mbox message length: %u for mod %d cmd %u, expected length: %u\n",
+				msg_desc->msg_len, mod, cmd,
+				msg_params->expected_out_size);
+			err = -EFAULT;
+			goto err_send;
+		}
+
+		memcpy(msg_params->buf_out, msg_desc->msg, msg_len);
+	}
+
+err_send:
+	mutex_unlock(&mbox->mbox_send_lock);
+
+	return err;
+}
+
+void hinic3_response_mbox_to_mgmt(struct hinic3_hwdev *hwdev, u8 mod, u16 cmd,
+				  const void *buf_in, u32 in_size, u16 msg_id)
+{
+	struct mbox_msg_info msg_info;
+
+	msg_info.msg_id = (u8)msg_id;
+	msg_info.status = 0;
+
+	send_mbox_msg(hwdev->mbox, mod, cmd, buf_in, in_size,
+		      MBOX_MGMT_FUNC_ID, MBOX_MSG_RESP,
+		      MBOX_MSG_NO_ACK, &msg_info);
+}
+
+int hinic3_send_mbox_to_mgmt_no_ack(struct hinic3_hwdev *hwdev, u8 mod, u16 cmd,
+				    const struct mgmt_msg_params *msg_params)
+{
+	struct hinic3_mbox *mbox = hwdev->mbox;
+	struct mbox_msg_info msg_info = {};
+	int err;
+
+	if (!hwdev->chip_present_flag)
+		return -EPERM;
+
+	mutex_lock(&mbox->mbox_send_lock);
+	err = send_mbox_msg(mbox, mod, cmd, msg_params->buf_in,
+			    msg_params->in_size, MBOX_MGMT_FUNC_ID,
+			    MBOX_MSG_SEND, MBOX_MSG_NO_ACK, &msg_info);
+	if (err)
+		dev_err(hwdev->dev, "Send mailbox no ack failed\n");
+
+	mutex_unlock(&mbox->mbox_send_lock);
+
+	return err;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.h

@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_MBOX_H_
+#define _HINIC3_MBOX_H_
+
+#include <linux/bitfield.h>
+#include <linux/mutex.h>
+
+struct hinic3_hwdev;
+struct mgmt_msg_params;
+
+#define MBOX_MSG_HEADER_SRC_GLB_FUNC_IDX_MASK  GENMASK_ULL(12, 0)
+#define MBOX_MSG_HEADER_STATUS_MASK            BIT_ULL(13)
+#define MBOX_MSG_HEADER_SOURCE_MASK            BIT_ULL(15)
+#define MBOX_MSG_HEADER_AEQ_ID_MASK            GENMASK_ULL(17, 16)
+#define MBOX_MSG_HEADER_MSG_ID_MASK            GENMASK_ULL(21, 18)
+#define MBOX_MSG_HEADER_CMD_MASK               GENMASK_ULL(31, 22)
+#define MBOX_MSG_HEADER_MSG_LEN_MASK           GENMASK_ULL(42, 32)
+#define MBOX_MSG_HEADER_MODULE_MASK            GENMASK_ULL(47, 43)
+#define MBOX_MSG_HEADER_SEG_LEN_MASK           GENMASK_ULL(53, 48)
+#define MBOX_MSG_HEADER_NO_ACK_MASK            BIT_ULL(54)
+#define MBOX_MSG_HEADER_DATA_TYPE_MASK         BIT_ULL(55)
+#define MBOX_MSG_HEADER_SEQID_MASK             GENMASK_ULL(61, 56)
+#define MBOX_MSG_HEADER_LAST_MASK              BIT_ULL(62)
+#define MBOX_MSG_HEADER_DIRECTION_MASK         BIT_ULL(63)
+
+#define MBOX_MSG_HEADER_SET(val, member) \
+	FIELD_PREP(MBOX_MSG_HEADER_##member##_MASK, val)
+#define MBOX_MSG_HEADER_GET(val, member) \
+	FIELD_GET(MBOX_MSG_HEADER_##member##_MASK, le64_to_cpu(val))
+
+/* identifies if a segment belongs to a message or to a response. A VF is only
+ * expected to send messages and receive responses. PF driver could receive
+ * messages and send responses.
+ */
+enum mbox_msg_direction_type {
+	MBOX_MSG_SEND = 0,
+	MBOX_MSG_RESP = 1,
+};
+
+/* Indicates if mbox message expects a response (ack) or not */
+enum mbox_msg_ack_type {
+	MBOX_MSG_ACK    = 0,
+	MBOX_MSG_NO_ACK = 1,
+};
+
+enum mbox_msg_data_type {
+	MBOX_MSG_DATA_INLINE = 0,
+	MBOX_MSG_DATA_DMA    = 1,
+};
+
+enum mbox_msg_src_type {
+	MBOX_MSG_FROM_MBOX = 1,
+};
+
+enum mbox_msg_aeq_type {
+	MBOX_MSG_AEQ_FOR_EVENT = 0,
+	MBOX_MSG_AEQ_FOR_MBOX  = 1,
+};
+
+#define HINIC3_MBOX_WQ_NAME  "hinic3_mbox"
+
+struct mbox_msg_info {
+	u8 msg_id;
+	u8 status;
+};
+
+struct hinic3_msg_desc {
+	u8                   *msg;
+	__le16               msg_len;
+	u8                   seq_id;
+	u8                   mod;
+	__le16               cmd;
+	struct mbox_msg_info msg_info;
+};
+
+struct hinic3_msg_channel {
+	struct   hinic3_msg_desc resp_msg;
+	struct   hinic3_msg_desc recv_msg;
+};
+
+struct hinic3_send_mbox {
+	u8 __iomem *data;
+	void       *wb_vaddr;
+	dma_addr_t wb_paddr;
+};
+
+enum mbox_event_state {
+	MBOX_EVENT_START   = 0,
+	MBOX_EVENT_FAIL    = 1,
+	MBOX_EVENT_SUCCESS = 2,
+	MBOX_EVENT_TIMEOUT = 3,
+	MBOX_EVENT_END     = 4,
+};
+
+struct mbox_dma_msg {
+	__le32 xor;
+	__le32 dma_addr_high;
+	__le32 dma_addr_low;
+	__le32 msg_len;
+	__le64 rsvd;
+};
+
+struct mbox_dma_queue {
+	void       *dma_buf_vaddr;
+	dma_addr_t dma_buf_paddr;
+	u16        depth;
+	u16        prod_idx;
+	u16        cons_idx;
+};
+
+struct hinic3_mbox {
+	struct hinic3_hwdev       *hwdev;
+	/* lock for send mbox message and ack message */
+	struct mutex              mbox_send_lock;
+	/* lock for send message transmission.
+	 * The lock hierarchy is mbox_send_lock -> mbox_seg_send_lock.
+	 */
+	struct mutex              mbox_seg_send_lock;
+	struct hinic3_send_mbox   send_mbox;
+	struct mbox_dma_queue     sync_msg_queue;
+	struct mbox_dma_queue     async_msg_queue;
+	struct workqueue_struct   *workq;
+	/* driver and MGMT CPU */
+	struct hinic3_msg_channel mgmt_msg;
+	/* VF to PF */
+	struct hinic3_msg_channel *func_msg;
+	u8                        send_msg_id;
+	enum mbox_event_state     event_flag;
+	/* lock for mbox event flag */
+	spinlock_t                mbox_lock;
+};
+
+void hinic3_mbox_func_aeqe_handler(struct hinic3_hwdev *hwdev, u8 *header,
+				   u8 size);
+int hinic3_init_mbox(struct hinic3_hwdev *hwdev);
+void hinic3_free_mbox(struct hinic3_hwdev *hwdev);
+
+int hinic3_send_mbox_to_mgmt(struct hinic3_hwdev *hwdev, u8 mod, u16 cmd,
+			     const struct mgmt_msg_params *msg_params);
+void hinic3_response_mbox_to_mgmt(struct hinic3_hwdev *hwdev, u8 mod, u16 cmd,
+				  const void *buf_in, u32 in_size, u16 msg_id);
+int hinic3_send_mbox_to_mgmt_no_ack(struct hinic3_hwdev *hwdev, u8 mod, u16 cmd,
+				    const struct mgmt_msg_params *msg_params);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_mgmt.c

@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include "hinic3_eqs.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+#include "hinic3_mgmt.h"
+
+#define HINIC3_MSG_TO_MGMT_MAX_LEN  2016
+
+#define MGMT_MAX_PF_BUF_SIZE        2048UL
+#define MGMT_SEG_LEN_MAX            48
+#define MGMT_ASYNC_MSG_FLAG         0x8
+
+#define HINIC3_MGMT_WQ_NAME         "hinic3_mgmt"
+
+/* Bogus sequence ID to prevent accidental match following partial message */
+#define MGMT_BOGUS_SEQ_ID  \
+	(MGMT_MAX_PF_BUF_SIZE / MGMT_SEG_LEN_MAX + 1)
+
+static void
+hinic3_mgmt_resp_msg_handler(struct hinic3_msg_pf_to_mgmt *pf_to_mgmt,
+			     struct hinic3_recv_msg *recv_msg)
+{
+	struct device *dev = pf_to_mgmt->hwdev->dev;
+
+	/* Ignore async msg */
+	if (recv_msg->msg_id & MGMT_ASYNC_MSG_FLAG)
+		return;
+
+	spin_lock(&pf_to_mgmt->sync_event_lock);
+	if (recv_msg->msg_id != pf_to_mgmt->sync_msg_id) {
+		dev_err(dev, "msg id mismatch, send msg id: 0x%x, recv msg id: 0x%x, event state: %d\n",
+			pf_to_mgmt->sync_msg_id, recv_msg->msg_id,
+			pf_to_mgmt->event_flag);
+	} else if (pf_to_mgmt->event_flag == COMM_SEND_EVENT_START) {
+		pf_to_mgmt->event_flag = COMM_SEND_EVENT_SUCCESS;
+		complete(&recv_msg->recv_done);
+	} else {
+		dev_err(dev, "Wait timeout, send msg id: 0x%x, recv msg id: 0x%x, event state: %d\n",
+			pf_to_mgmt->sync_msg_id, recv_msg->msg_id,
+			pf_to_mgmt->event_flag);
+	}
+	spin_unlock(&pf_to_mgmt->sync_event_lock);
+}
+
+static void hinic3_recv_mgmt_msg_work_handler(struct work_struct *work)
+{
+	struct hinic3_msg_pf_to_mgmt *pf_to_mgmt;
+	struct mgmt_msg_handle_work *mgmt_work;
+	struct mgmt_msg_head *ack_cmd;
+
+	mgmt_work = container_of(work, struct mgmt_msg_handle_work, work);
+
+	/* At the moment, we do not expect any meaningful messages but if the
+	 * sender expects an ACK we still need to provide one with "unsupported"
+	 * status.
+	 */
+	if (mgmt_work->async_mgmt_to_pf)
+		goto out;
+
+	pf_to_mgmt = mgmt_work->pf_to_mgmt;
+	ack_cmd = pf_to_mgmt->mgmt_ack_buf;
+	memset(ack_cmd, 0, sizeof(*ack_cmd));
+	ack_cmd->status = MGMT_STATUS_CMD_UNSUPPORTED;
+
+	hinic3_response_mbox_to_mgmt(pf_to_mgmt->hwdev, mgmt_work->mod,
+				     mgmt_work->cmd, ack_cmd, sizeof(*ack_cmd),
+				     mgmt_work->msg_id);
+
+out:
+	kfree(mgmt_work->msg);
+	kfree(mgmt_work);
+}
+
+static int hinic3_recv_msg_add_seg(struct hinic3_recv_msg *recv_msg,
+				   __le64 msg_header, const void *seg_data,
+				   bool *is_complete)
+{
+	u8 seq_id, msg_id, seg_len, is_last;
+	char *msg_buff;
+	u32 offset;
+
+	seg_len = MBOX_MSG_HEADER_GET(msg_header, SEG_LEN);
+	is_last = MBOX_MSG_HEADER_GET(msg_header, LAST);
+	seq_id  = MBOX_MSG_HEADER_GET(msg_header, SEQID);
+	msg_id = MBOX_MSG_HEADER_GET(msg_header, MSG_ID);
+
+	if (seg_len > MGMT_SEG_LEN_MAX)
+		return -EINVAL;
+
+	/* All segments but last must be of maximal size */
+	if (seg_len != MGMT_SEG_LEN_MAX && !is_last)
+		return -EINVAL;
+
+	if (seq_id == 0) {
+		recv_msg->seq_id = seq_id;
+		recv_msg->msg_id = msg_id;
+	} else if (seq_id != recv_msg->seq_id + 1 ||
+		   msg_id != recv_msg->msg_id) {
+		return -EINVAL;
+	}
+
+	offset = seq_id * MGMT_SEG_LEN_MAX;
+	if (offset + seg_len > MGMT_MAX_PF_BUF_SIZE)
+		return -EINVAL;
+
+	msg_buff = recv_msg->msg;
+	memcpy(msg_buff + offset, seg_data, seg_len);
+	recv_msg->msg_len = offset + seg_len;
+	recv_msg->seq_id = seq_id;
+	*is_complete = !!is_last;
+
+	return 0;
+}
+
+static void hinic3_init_mgmt_msg_work(struct hinic3_msg_pf_to_mgmt *pf_to_mgmt,
+				      struct hinic3_recv_msg *recv_msg)
+{
+	struct mgmt_msg_handle_work *mgmt_work;
+
+	mgmt_work = kmalloc_obj(*mgmt_work);
+	if (!mgmt_work)
+		return;
+
+	if (recv_msg->msg_len) {
+		mgmt_work->msg = kmemdup(recv_msg->msg, recv_msg->msg_len,
+					 GFP_KERNEL);
+		if (!mgmt_work->msg) {
+			kfree(mgmt_work);
+			return;
+		}
+	} else {
+		mgmt_work->msg = NULL;
+	}
+
+	mgmt_work->pf_to_mgmt = pf_to_mgmt;
+	mgmt_work->msg_len = recv_msg->msg_len;
+	mgmt_work->msg_id = recv_msg->msg_id;
+	mgmt_work->mod = recv_msg->mod;
+	mgmt_work->cmd = recv_msg->cmd;
+	mgmt_work->async_mgmt_to_pf = recv_msg->async_mgmt_to_pf;
+
+	INIT_WORK(&mgmt_work->work, hinic3_recv_mgmt_msg_work_handler);
+	queue_work(pf_to_mgmt->workq, &mgmt_work->work);
+}
+
+static void
+hinic3_recv_mgmt_msg_handler(struct hinic3_msg_pf_to_mgmt *pf_to_mgmt,
+			     const u8 *header,
+			     struct hinic3_recv_msg *recv_msg)
+{
+	struct hinic3_hwdev *hwdev = pf_to_mgmt->hwdev;
+	const void *seg_data;
+	__le64 msg_header;
+	bool is_complete;
+	u8 dir, msg_id;
+	int err;
+
+	msg_header = *(__force __le64 *)header;
+	dir = MBOX_MSG_HEADER_GET(msg_header, DIRECTION);
+	msg_id = MBOX_MSG_HEADER_GET(msg_header, MSG_ID);
+	/* Don't need to get anything from hw when cmd is async */
+	if (dir == MBOX_MSG_RESP && (msg_id & MGMT_ASYNC_MSG_FLAG))
+		return;
+
+	seg_data = header + sizeof(msg_header);
+	err = hinic3_recv_msg_add_seg(recv_msg, msg_header,
+				      seg_data, &is_complete);
+	if (err) {
+		dev_err(hwdev->dev, "invalid receive segment\n");
+		/* set seq_id to invalid seq_id */
+		recv_msg->seq_id = MGMT_BOGUS_SEQ_ID;
+
+		return;
+	}
+
+	if (!is_complete)
+		return;
+
+	recv_msg->cmd = MBOX_MSG_HEADER_GET(msg_header, CMD);
+	recv_msg->mod = MBOX_MSG_HEADER_GET(msg_header, MODULE);
+	recv_msg->async_mgmt_to_pf = MBOX_MSG_HEADER_GET(msg_header, NO_ACK);
+	recv_msg->seq_id = MGMT_BOGUS_SEQ_ID;
+
+	if (dir == MBOX_MSG_RESP)
+		hinic3_mgmt_resp_msg_handler(pf_to_mgmt, recv_msg);
+	else
+		hinic3_init_mgmt_msg_work(pf_to_mgmt, recv_msg);
+}
+
+static int alloc_recv_msg(struct hinic3_recv_msg *recv_msg)
+{
+	recv_msg->seq_id = MGMT_BOGUS_SEQ_ID;
+
+	recv_msg->msg = kzalloc(MGMT_MAX_PF_BUF_SIZE, GFP_KERNEL);
+	if (!recv_msg->msg)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void free_recv_msg(struct hinic3_recv_msg *recv_msg)
+{
+	kfree(recv_msg->msg);
+}
+
+static int alloc_msg_buf(struct hinic3_msg_pf_to_mgmt *pf_to_mgmt)
+{
+	struct device *dev = pf_to_mgmt->hwdev->dev;
+	int err;
+
+	err = alloc_recv_msg(&pf_to_mgmt->recv_msg_from_mgmt);
+	if (err) {
+		dev_err(dev, "Failed to allocate recv msg\n");
+		return err;
+	}
+
+	err = alloc_recv_msg(&pf_to_mgmt->recv_resp_msg_from_mgmt);
+	if (err) {
+		dev_err(dev, "Failed to allocate resp recv msg\n");
+		goto err_free_msg_from_mgmt;
+	}
+
+	pf_to_mgmt->mgmt_ack_buf = kzalloc(MGMT_MAX_PF_BUF_SIZE, GFP_KERNEL);
+	if (!pf_to_mgmt->mgmt_ack_buf) {
+		err = -ENOMEM;
+		goto err_free_resp_msg_from_mgmt;
+	}
+
+	return 0;
+
+err_free_resp_msg_from_mgmt:
+	free_recv_msg(&pf_to_mgmt->recv_resp_msg_from_mgmt);
+err_free_msg_from_mgmt:
+	free_recv_msg(&pf_to_mgmt->recv_msg_from_mgmt);
+
+	return err;
+}
+
+static void free_msg_buf(struct hinic3_msg_pf_to_mgmt *pf_to_mgmt)
+{
+	kfree(pf_to_mgmt->mgmt_ack_buf);
+
+	free_recv_msg(&pf_to_mgmt->recv_resp_msg_from_mgmt);
+	free_recv_msg(&pf_to_mgmt->recv_msg_from_mgmt);
+}
+
+int hinic3_pf_to_mgmt_init(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_msg_pf_to_mgmt *pf_to_mgmt;
+	int err;
+
+	pf_to_mgmt = kzalloc_obj(*pf_to_mgmt);
+	if (!pf_to_mgmt)
+		return -ENOMEM;
+
+	hwdev->pf_to_mgmt = pf_to_mgmt;
+	pf_to_mgmt->hwdev = hwdev;
+	spin_lock_init(&pf_to_mgmt->sync_event_lock);
+	pf_to_mgmt->workq = create_singlethread_workqueue(HINIC3_MGMT_WQ_NAME);
+	if (!pf_to_mgmt->workq) {
+		dev_err(hwdev->dev, "Failed to initialize MGMT workqueue\n");
+		err = -ENOMEM;
+		goto err_free_pf_to_mgmt;
+	}
+
+	err = alloc_msg_buf(pf_to_mgmt);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to allocate msg buffers\n");
+		goto err_destroy_workqueue;
+	}
+
+	return 0;
+
+err_destroy_workqueue:
+	destroy_workqueue(pf_to_mgmt->workq);
+err_free_pf_to_mgmt:
+	kfree(pf_to_mgmt);
+
+	return err;
+}
+
+void hinic3_pf_to_mgmt_free(struct hinic3_hwdev *hwdev)
+{
+	struct hinic3_msg_pf_to_mgmt *pf_to_mgmt = hwdev->pf_to_mgmt;
+
+	/* destroy workqueue before free related pf_to_mgmt resources in case of
+	 * illegal resource access
+	 */
+	destroy_workqueue(pf_to_mgmt->workq);
+
+	free_msg_buf(pf_to_mgmt);
+	kfree(pf_to_mgmt);
+}
+
+void hinic3_flush_mgmt_workq(struct hinic3_hwdev *hwdev)
+{
+	if (hwdev->aeqs)
+		flush_workqueue(hwdev->aeqs->workq);
+
+	if (HINIC3_IS_PF(hwdev) && hwdev->pf_to_mgmt)
+		flush_workqueue(hwdev->pf_to_mgmt->workq);
+}
+
+void hinic3_mgmt_msg_aeqe_handler(struct hinic3_hwdev *hwdev, u8 *header,
+				  u8 size)
+{
+	struct hinic3_msg_pf_to_mgmt *pf_to_mgmt;
+	struct hinic3_recv_msg *recv_msg;
+	__le64 msg_header;
+	bool is_send_dir;
+
+	if (MBOX_MSG_HEADER_GET(*(__force __le64 *)header, SOURCE) ==
+	    MBOX_MSG_FROM_MBOX) {
+		hinic3_mbox_func_aeqe_handler(hwdev, header, size);
+
+		return;
+	}
+
+	pf_to_mgmt = hwdev->pf_to_mgmt;
+	msg_header = *(__force __le64 *)header;
+
+	is_send_dir = (MBOX_MSG_HEADER_GET(msg_header, DIRECTION) ==
+		       MBOX_MSG_SEND) ? true : false;
+
+	recv_msg = is_send_dir ? &pf_to_mgmt->recv_msg_from_mgmt :
+		   &pf_to_mgmt->recv_resp_msg_from_mgmt;
+
+	hinic3_recv_mgmt_msg_handler(pf_to_mgmt, header, recv_msg);
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_mgmt.h

@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_MGMT_H_
+#define _HINIC3_MGMT_H_
+
+#include <linux/types.h>
+
+#include "hinic3_mbox.h"
+#include "hinic3_hw_intf.h"
+
+struct hinic3_hwdev;
+
+struct hinic3_recv_msg {
+	/* Preallocated buffer of size MAX_PF_MGMT_BUF_SIZE that accumulates
+	 * receive message, segment-by-segment.
+	 */
+	void                 *msg;
+	/* Message id for which segments are accumulated. */
+	u8                   msg_id;
+	/* Sequence id of last received segment of current message. */
+	u8                   seq_id;
+	u16                  msg_len;
+	int                  async_mgmt_to_pf;
+	enum mgmt_mod_type   mod;
+	u16                  cmd;
+	struct completion    recv_done;
+};
+
+enum comm_pf_to_mgmt_event_state {
+	COMM_SEND_EVENT_UNINIT,
+	COMM_SEND_EVENT_START,
+	COMM_SEND_EVENT_SUCCESS,
+	COMM_SEND_EVENT_TIMEOUT,
+};
+
+struct hinic3_msg_pf_to_mgmt {
+	struct hinic3_hwdev              *hwdev;
+	struct workqueue_struct          *workq;
+	void                             *mgmt_ack_buf;
+	struct hinic3_recv_msg           recv_msg_from_mgmt;
+	struct hinic3_recv_msg           recv_resp_msg_from_mgmt;
+	u16                              async_msg_id;
+	u16                              sync_msg_id;
+	void                             *async_msg_cb_data[MGMT_MOD_HW_MAX];
+	/* synchronizes message send with message receives via event queue */
+	spinlock_t                       sync_event_lock;
+	enum comm_pf_to_mgmt_event_state event_flag;
+};
+
+struct mgmt_msg_handle_work {
+	struct work_struct           work;
+	struct hinic3_msg_pf_to_mgmt *pf_to_mgmt;
+	void                         *msg;
+	u16                          msg_len;
+	enum mgmt_mod_type           mod;
+	u16                          cmd;
+	u16                          msg_id;
+	int                          async_mgmt_to_pf;
+};
+
+int hinic3_pf_to_mgmt_init(struct hinic3_hwdev *hwdev);
+void hinic3_pf_to_mgmt_free(struct hinic3_hwdev *hwdev);
+void hinic3_flush_mgmt_workq(struct hinic3_hwdev *hwdev);
+void hinic3_mgmt_msg_aeqe_handler(struct hinic3_hwdev *hwdev,
+				  u8 *header, u8 size);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_mgmt_interface.h

@@ -0,0 +1,307 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_MGMT_INTERFACE_H_
+#define _HINIC3_MGMT_INTERFACE_H_
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/if_ether.h>
+
+#include "hinic3_hw_intf.h"
+
+struct l2nic_cmd_feature_nego {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   rsvd;
+	u64                  s_feature[4];
+};
+
+enum l2nic_func_tbl_cfg_bitmap {
+	L2NIC_FUNC_TBL_CFG_INIT        = 0,
+	L2NIC_FUNC_TBL_CFG_RX_BUF_SIZE = 1,
+	L2NIC_FUNC_TBL_CFG_MTU         = 2,
+};
+
+struct l2nic_func_tbl_cfg {
+	u16 rx_wqe_buf_size;
+	u16 mtu;
+	u32 rsvd[9];
+};
+
+struct l2nic_cmd_set_func_tbl {
+	struct mgmt_msg_head      msg_head;
+	u16                       func_id;
+	u16                       rsvd;
+	u32                       cfg_bitmap;
+	struct l2nic_func_tbl_cfg tbl_cfg;
+};
+
+struct l2nic_cmd_set_mac {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u16                  vlan_id;
+	u16                  rsvd1;
+	u8                   mac[ETH_ALEN];
+};
+
+struct l2nic_cmd_update_mac {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u16                  vlan_id;
+	u16                  rsvd1;
+	u8                   old_mac[ETH_ALEN];
+	u16                  rsvd2;
+	u8                   new_mac[ETH_ALEN];
+};
+
+struct l2nic_cmd_vlan_config {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   rsvd1;
+	u16                  vlan_id;
+	u16                  rsvd2;
+};
+
+struct l2nic_cmd_vlan_offload {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   vlan_offload;
+	u8                   rsvd1[5];
+};
+
+/* set vlan filter */
+struct l2nic_cmd_set_vlan_filter {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   rsvd[2];
+	/* bit0:vlan filter en; bit1:broadcast_filter_en */
+	u32                  vlan_filter_ctrl;
+};
+
+struct l2nic_cmd_set_ci_attr {
+	struct mgmt_msg_head msg_head;
+	u16                  func_idx;
+	u8                   dma_attr_off;
+	u8                   pending_limit;
+	u8                   coalescing_time;
+	u8                   intr_en;
+	u16                  intr_idx;
+	u32                  l2nic_sqn;
+	u32                  rsvd;
+	u64                  ci_addr;
+};
+
+struct l2nic_cmd_clear_qp_resource {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u16                  rsvd1;
+};
+
+struct l2nic_cmd_force_pkt_drop {
+	struct mgmt_msg_head msg_head;
+	u8                   port;
+	u8                   rsvd1[3];
+};
+
+struct l2nic_cmd_set_vport_state {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u16                  rsvd1;
+	/* 0--disable, 1--enable */
+	u8                   state;
+	u8                   rsvd2[3];
+};
+
+/* *
+ * Definition of the NIC receiving mode
+ */
+#define L2NIC_RX_MODE_UC       0x01
+#define L2NIC_RX_MODE_MC       0x02
+#define L2NIC_RX_MODE_BC       0x04
+#define L2NIC_RX_MODE_MC_ALL   0x08
+#define L2NIC_RX_MODE_PROMISC  0x10
+
+struct l2nic_rx_mode_config {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u16                  rsvd1;
+	u32                  rx_mode;
+};
+
+struct l2nic_cmd_set_dcb_state {
+	struct mgmt_msg_head head;
+	u16                  func_id;
+	/* 0 - get dcb state, 1 - set dcb state */
+	u8                   op_code;
+	/* 0 - disable, 1 - enable dcb */
+	u8                   state;
+	/* 0 - disable, 1 - enable dcb */
+	u8                   port_state;
+	u8                   rsvd[7];
+};
+
+struct l2nic_cmd_lro_config {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   rsvd1;
+	u8                   lro_ipv4_en;
+	u8                   lro_ipv6_en;
+	/* unit is 1K */
+	u8                   lro_max_pkt_len;
+	u8                   resv2[13];
+};
+
+struct l2nic_cmd_lro_timer {
+	struct mgmt_msg_head msg_head;
+	/* 1: set timer value, 0: get timer value */
+	u8                   opcode;
+	u8                   rsvd[3];
+	u32                  timer;
+};
+
+#define L2NIC_RSS_TYPE_VALID_MASK         BIT(23)
+#define L2NIC_RSS_TYPE_TCP_IPV6_EXT_MASK  BIT(24)
+#define L2NIC_RSS_TYPE_IPV6_EXT_MASK      BIT(25)
+#define L2NIC_RSS_TYPE_TCP_IPV6_MASK      BIT(26)
+#define L2NIC_RSS_TYPE_IPV6_MASK          BIT(27)
+#define L2NIC_RSS_TYPE_TCP_IPV4_MASK      BIT(28)
+#define L2NIC_RSS_TYPE_IPV4_MASK          BIT(29)
+#define L2NIC_RSS_TYPE_UDP_IPV6_MASK      BIT(30)
+#define L2NIC_RSS_TYPE_UDP_IPV4_MASK      BIT(31)
+#define L2NIC_RSS_TYPE_SET(val, member)  \
+	FIELD_PREP(L2NIC_RSS_TYPE_##member##_MASK, val)
+#define L2NIC_RSS_TYPE_GET(val, member)  \
+	FIELD_GET(L2NIC_RSS_TYPE_##member##_MASK, val)
+
+#define L2NIC_RSS_INDIR_SIZE  256
+#define L2NIC_RSS_KEY_SIZE    40
+
+/* IEEE 802.1Qaz std */
+#define L2NIC_DCB_COS_MAX     0x8
+
+struct l2nic_cmd_pause_config {
+	struct mgmt_msg_head msg_head;
+	u8                   port_id;
+	u8                   opcode;
+	u16                  rsvd1;
+	u8                   auto_neg;
+	u8                   rx_pause;
+	u8                   tx_pause;
+	u8                   rsvd2[5];
+};
+
+struct l2nic_cmd_rss_ctx_tbl {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u16                  rsvd1;
+	u32                  context;
+};
+
+struct l2nic_cmd_cfg_rss_engine {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   hash_engine;
+	u8                   rsvd1[4];
+};
+
+struct l2nic_cmd_cfg_rss_hash_key {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   opcode;
+	u8                   rsvd1;
+	u8                   key[L2NIC_RSS_KEY_SIZE];
+};
+
+struct l2nic_cmd_cfg_rss {
+	struct mgmt_msg_head msg_head;
+	u16                  func_id;
+	u8                   rss_en;
+	u8                   rq_priority_number;
+	u8                   prio_tc[L2NIC_DCB_COS_MAX];
+	u16                  num_qps;
+	u16                  rsvd1;
+};
+
+/* Commands between NIC to fw */
+enum l2nic_cmd {
+	/* FUNC CFG */
+	L2NIC_CMD_SET_FUNC_TBL        = 5,
+	L2NIC_CMD_SET_VPORT_ENABLE    = 6,
+	L2NIC_CMD_SET_RX_MODE         = 7,
+	L2NIC_CMD_SET_SQ_CI_ATTR      = 8,
+	L2NIC_CMD_CLEAR_QP_RESOURCE   = 11,
+	L2NIC_CMD_CFG_RX_LRO          = 13,
+	L2NIC_CMD_CFG_LRO_TIMER       = 14,
+	L2NIC_CMD_FEATURE_NEGO        = 15,
+	L2NIC_CMD_GET_MAC             = 20,
+	L2NIC_CMD_SET_MAC             = 21,
+	L2NIC_CMD_DEL_MAC             = 22,
+	L2NIC_CMD_UPDATE_MAC          = 23,
+	L2NIC_CMD_CFG_FUNC_VLAN       = 25,
+	L2NIC_CMD_SET_VLAN_FILTER_EN  = 26,
+	L2NIC_CMD_SET_RX_VLAN_OFFLOAD = 27,
+	L2NIC_CMD_CFG_RSS             = 60,
+	L2NIC_CMD_CFG_RSS_HASH_KEY    = 63,
+	L2NIC_CMD_CFG_RSS_HASH_ENGINE = 64,
+	L2NIC_CMD_SET_RSS_CTX_TBL     = 65,
+	L2NIC_CMD_CFG_PAUSE_INFO      = 101,
+	L2NIC_CMD_QOS_DCB_STATE       = 110,
+	L2NIC_CMD_FORCE_PKT_DROP      = 113,
+	L2NIC_CMD_MAX                 = 256,
+};
+
+struct l2nic_cmd_rss_set_indir_tbl {
+	__le32 rsvd[4];
+	__le16 entry[L2NIC_RSS_INDIR_SIZE];
+};
+
+/* NIC CMDQ MODE */
+enum l2nic_ucode_cmd {
+	L2NIC_UCODE_CMD_MODIFY_QUEUE_CTX  = 0,
+	L2NIC_UCODE_CMD_CLEAN_QUEUE_CTX   = 1,
+	L2NIC_UCODE_CMD_SET_RSS_INDIR_TBL = 4,
+};
+
+/* hilink mac group command */
+enum mag_cmd {
+	MAG_CMD_SET_PORT_ENABLE = 6,
+	MAG_CMD_GET_LINK_STATUS = 7,
+
+	MAG_CMD_GET_PORT_INFO   = 153,
+};
+
+/* firmware also use this cmd report link event to driver */
+struct mag_cmd_get_link_status {
+	struct mgmt_msg_head head;
+	u8                   port_id;
+	/* 0:link down  1:link up */
+	u8                   status;
+	u8                   rsvd0[2];
+};
+
+enum hinic3_nic_feature_cap {
+	HINIC3_NIC_F_CSUM           = BIT(0),
+	HINIC3_NIC_F_SCTP_CRC       = BIT(1),
+	HINIC3_NIC_F_TSO            = BIT(2),
+	HINIC3_NIC_F_LRO            = BIT(3),
+	HINIC3_NIC_F_UFO            = BIT(4),
+	HINIC3_NIC_F_RSS            = BIT(5),
+	HINIC3_NIC_F_RX_VLAN_FILTER = BIT(6),
+	HINIC3_NIC_F_RX_VLAN_STRIP  = BIT(7),
+	HINIC3_NIC_F_TX_VLAN_INSERT = BIT(8),
+	HINIC3_NIC_F_VXLAN_OFFLOAD  = BIT(9),
+	HINIC3_NIC_F_FDIR           = BIT(11),
+	HINIC3_NIC_F_PROMISC        = BIT(12),
+	HINIC3_NIC_F_ALLMULTI       = BIT(13),
+	HINIC3_NIC_F_RATE_LIMIT     = BIT(16),
+};
+
+#define HINIC3_NIC_F_ALL_MASK           0x33bff
+#define HINIC3_NIC_DRV_DEFAULT_FEATURE  0x3f03f
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_netdev_ops.c

@@ -0,0 +1,873 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/netdevice.h>
+#include <net/vxlan.h>
+
+#include "hinic3_hwif.h"
+#include "hinic3_nic_cfg.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_io.h"
+#include "hinic3_rss.h"
+#include "hinic3_rx.h"
+#include "hinic3_tx.h"
+
+#define HINIC3_LRO_DEFAULT_COAL_PKT_SIZE  32
+#define HINIC3_LRO_DEFAULT_TIME_LIMIT     16
+
+#define VLAN_BITMAP_BITS_SIZE(nic_dev)    (sizeof(*(nic_dev)->vlan_bitmap) * 8)
+#define VID_LINE(nic_dev, vid)  \
+	((vid) / VLAN_BITMAP_BITS_SIZE(nic_dev))
+#define VID_COL(nic_dev, vid)  \
+	((vid) & (VLAN_BITMAP_BITS_SIZE(nic_dev) - 1))
+
+/* try to modify the number of irq to the target number,
+ * and return the actual number of irq.
+ */
+static u16 hinic3_qp_irq_change(struct net_device *netdev,
+				u16 dst_num_qp_irq)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct msix_entry *qps_msix_entries;
+	u16 resp_irq_num, irq_num_gap, i;
+	u16 idx;
+	int err;
+
+	qps_msix_entries = nic_dev->qps_msix_entries;
+	if (dst_num_qp_irq > nic_dev->num_qp_irq) {
+		irq_num_gap = dst_num_qp_irq - nic_dev->num_qp_irq;
+		err = hinic3_alloc_irqs(nic_dev->hwdev, irq_num_gap,
+					&qps_msix_entries[nic_dev->num_qp_irq],
+					&resp_irq_num);
+		if (err) {
+			netdev_err(netdev, "Failed to alloc irqs\n");
+			return nic_dev->num_qp_irq;
+		}
+
+		nic_dev->num_qp_irq += resp_irq_num;
+	} else if (dst_num_qp_irq < nic_dev->num_qp_irq) {
+		irq_num_gap = nic_dev->num_qp_irq - dst_num_qp_irq;
+		for (i = 0; i < irq_num_gap; i++) {
+			idx = (nic_dev->num_qp_irq - i) - 1;
+			hinic3_free_irq(nic_dev->hwdev,
+					qps_msix_entries[idx].vector);
+			qps_msix_entries[idx].vector = 0;
+			qps_msix_entries[idx].entry = 0;
+		}
+		nic_dev->num_qp_irq = dst_num_qp_irq;
+	}
+
+	return nic_dev->num_qp_irq;
+}
+
+static void hinic3_config_num_qps(struct net_device *netdev,
+				  struct hinic3_dyna_txrxq_params *q_params)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 alloc_num_irq, cur_num_irq;
+	u16 dst_num_irq;
+
+	if (!test_bit(HINIC3_RSS_ENABLE, &nic_dev->flags))
+		q_params->num_qps = 1;
+
+	if (nic_dev->num_qp_irq >= q_params->num_qps)
+		goto out;
+
+	cur_num_irq = nic_dev->num_qp_irq;
+
+	alloc_num_irq = hinic3_qp_irq_change(netdev, q_params->num_qps);
+	if (alloc_num_irq < q_params->num_qps) {
+		q_params->num_qps = alloc_num_irq;
+		netdev_warn(netdev, "Can not get enough irqs, adjust num_qps to %u\n",
+			    q_params->num_qps);
+
+		/* The current irq may be in use, we must keep it */
+		dst_num_irq = max_t(u16, cur_num_irq, q_params->num_qps);
+		hinic3_qp_irq_change(netdev, dst_num_irq);
+	}
+
+out:
+	netdev_dbg(netdev, "No need to change irqs, num_qps is %u\n",
+		   q_params->num_qps);
+}
+
+static int hinic3_setup_num_qps(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	nic_dev->num_qp_irq = 0;
+
+	nic_dev->qps_msix_entries = kzalloc_objs(struct msix_entry,
+						 nic_dev->max_qps);
+	if (!nic_dev->qps_msix_entries)
+		return -ENOMEM;
+
+	hinic3_config_num_qps(netdev, &nic_dev->q_params);
+
+	return 0;
+}
+
+static void hinic3_destroy_num_qps(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 i;
+
+	for (i = 0; i < nic_dev->num_qp_irq; i++)
+		hinic3_free_irq(nic_dev->hwdev,
+				nic_dev->qps_msix_entries[i].vector);
+
+	kfree(nic_dev->qps_msix_entries);
+}
+
+static int hinic3_alloc_txrxq_resources(struct net_device *netdev,
+					struct hinic3_dyna_txrxq_params *q_params)
+{
+	int err;
+
+	q_params->txqs_res = kzalloc_objs(*q_params->txqs_res,
+					  q_params->num_qps);
+	if (!q_params->txqs_res)
+		return -ENOMEM;
+
+	q_params->rxqs_res = kzalloc_objs(*q_params->rxqs_res,
+					  q_params->num_qps);
+	if (!q_params->rxqs_res) {
+		err = -ENOMEM;
+		goto err_free_txqs_res_arr;
+	}
+
+	q_params->irq_cfg = kzalloc_objs(*q_params->irq_cfg, q_params->num_qps);
+	if (!q_params->irq_cfg) {
+		err = -ENOMEM;
+		goto err_free_rxqs_res_arr;
+	}
+
+	err = hinic3_alloc_txqs_res(netdev, q_params->num_qps,
+				    q_params->sq_depth, q_params->txqs_res);
+	if (err) {
+		netdev_err(netdev, "Failed to alloc txqs resource\n");
+		goto err_free_irq_cfg;
+	}
+
+	err = hinic3_alloc_rxqs_res(netdev, q_params->num_qps,
+				    q_params->rq_depth, q_params->rxqs_res);
+	if (err) {
+		netdev_err(netdev, "Failed to alloc rxqs resource\n");
+		goto err_free_txqs_res;
+	}
+
+	return 0;
+
+err_free_txqs_res:
+	hinic3_free_txqs_res(netdev, q_params->num_qps, q_params->sq_depth,
+			     q_params->txqs_res);
+err_free_irq_cfg:
+	kfree(q_params->irq_cfg);
+	q_params->irq_cfg = NULL;
+err_free_rxqs_res_arr:
+	kfree(q_params->rxqs_res);
+	q_params->rxqs_res = NULL;
+err_free_txqs_res_arr:
+	kfree(q_params->txqs_res);
+	q_params->txqs_res = NULL;
+
+	return err;
+}
+
+static void hinic3_free_txrxq_resources(struct net_device *netdev,
+					struct hinic3_dyna_txrxq_params *q_params)
+{
+	hinic3_free_rxqs_res(netdev, q_params->num_qps, q_params->rq_depth,
+			     q_params->rxqs_res);
+	hinic3_free_txqs_res(netdev, q_params->num_qps, q_params->sq_depth,
+			     q_params->txqs_res);
+
+	kfree(q_params->irq_cfg);
+	q_params->irq_cfg = NULL;
+
+	kfree(q_params->rxqs_res);
+	q_params->rxqs_res = NULL;
+
+	kfree(q_params->txqs_res);
+	q_params->txqs_res = NULL;
+}
+
+static int hinic3_configure_txrxqs(struct net_device *netdev,
+				   struct hinic3_dyna_txrxq_params *q_params)
+{
+	int err;
+
+	err = hinic3_configure_txqs(netdev, q_params->num_qps,
+				    q_params->sq_depth, q_params->txqs_res);
+	if (err) {
+		netdev_err(netdev, "Failed to configure txqs\n");
+		return err;
+	}
+
+	err = hinic3_configure_rxqs(netdev, q_params->num_qps,
+				    q_params->rq_depth, q_params->rxqs_res);
+	if (err) {
+		netdev_err(netdev, "Failed to configure rxqs\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int hinic3_configure(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int err;
+
+	netdev->min_mtu = HINIC3_MIN_MTU_SIZE;
+	netdev->max_mtu = HINIC3_MAX_JUMBO_FRAME_SIZE;
+	err = hinic3_set_port_mtu(netdev, netdev->mtu);
+	if (err) {
+		netdev_err(netdev, "Failed to set mtu\n");
+		return err;
+	}
+
+	/* Ensure DCB is disabled */
+	hinic3_sync_dcb_state(nic_dev->hwdev, 1, 0);
+
+	if (test_bit(HINIC3_RSS_ENABLE, &nic_dev->flags)) {
+		err = hinic3_rss_init(netdev);
+		if (err) {
+			netdev_err(netdev, "Failed to init rss\n");
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+static void hinic3_remove_configure(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	if (test_bit(HINIC3_RSS_ENABLE, &nic_dev->flags))
+		hinic3_rss_uninit(netdev);
+}
+
+static int hinic3_alloc_channel_resources(struct net_device *netdev,
+					  struct hinic3_dyna_qp_params *qp_params,
+					  struct hinic3_dyna_txrxq_params *trxq_params)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int err;
+
+	qp_params->num_qps = trxq_params->num_qps;
+	qp_params->sq_depth = trxq_params->sq_depth;
+	qp_params->rq_depth = trxq_params->rq_depth;
+
+	err = hinic3_alloc_qps(nic_dev, qp_params);
+	if (err) {
+		netdev_err(netdev, "Failed to alloc qps\n");
+		return err;
+	}
+
+	err = hinic3_alloc_txrxq_resources(netdev, trxq_params);
+	if (err) {
+		netdev_err(netdev, "Failed to alloc txrxq resources\n");
+		hinic3_free_qps(nic_dev, qp_params);
+		return err;
+	}
+
+	return 0;
+}
+
+static void hinic3_free_channel_resources(struct net_device *netdev,
+					  struct hinic3_dyna_qp_params *qp_params,
+					  struct hinic3_dyna_txrxq_params *trxq_params)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	hinic3_free_txrxq_resources(netdev, trxq_params);
+	hinic3_free_qps(nic_dev, qp_params);
+}
+
+static int hinic3_open_channel(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int err;
+
+	err = hinic3_init_qp_ctxts(nic_dev);
+	if (err) {
+		netdev_err(netdev, "Failed to init qps\n");
+		return err;
+	}
+
+	err = hinic3_configure_txrxqs(netdev, &nic_dev->q_params);
+	if (err) {
+		netdev_err(netdev, "Failed to configure txrxqs\n");
+		goto err_free_qp_ctxts;
+	}
+
+	err = hinic3_qps_irq_init(netdev);
+	if (err) {
+		netdev_err(netdev, "Failed to init txrxq irq\n");
+		goto err_free_qp_ctxts;
+	}
+
+	err = hinic3_configure(netdev);
+	if (err) {
+		netdev_err(netdev, "Failed to configure device resources\n");
+		goto err_uninit_qps_irq;
+	}
+
+	return 0;
+
+err_uninit_qps_irq:
+	hinic3_qps_irq_uninit(netdev);
+err_free_qp_ctxts:
+	hinic3_free_qp_ctxts(nic_dev);
+
+	return err;
+}
+
+static void hinic3_close_channel(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	hinic3_remove_configure(netdev);
+	hinic3_qps_irq_uninit(netdev);
+	hinic3_free_qp_ctxts(nic_dev);
+}
+
+static int hinic3_maybe_set_port_state(struct net_device *netdev, bool enable)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int err;
+
+	mutex_lock(&nic_dev->port_state_mutex);
+	err = hinic3_set_port_enable(nic_dev->hwdev, enable);
+	mutex_unlock(&nic_dev->port_state_mutex);
+
+	return err;
+}
+
+static void hinic3_print_link_message(struct net_device *netdev,
+				      bool link_status_up)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	if (nic_dev->link_status_up == link_status_up)
+		return;
+
+	nic_dev->link_status_up = link_status_up;
+
+	netdev_dbg(netdev, "Link is %s\n", str_up_down(link_status_up));
+}
+
+static int hinic3_vport_up(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	bool link_status_up;
+	u16 glb_func_id;
+	int err;
+
+	glb_func_id = hinic3_global_func_id(nic_dev->hwdev);
+	err = hinic3_set_vport_enable(nic_dev->hwdev, glb_func_id, true);
+	if (err) {
+		netdev_err(netdev, "Failed to enable vport\n");
+		goto err_flush_qps_res;
+	}
+
+	err = hinic3_maybe_set_port_state(netdev, true);
+	if (err) {
+		netdev_err(netdev, "Failed to enable port\n");
+		goto err_disable_vport;
+	}
+
+	err = netif_set_real_num_queues(netdev, nic_dev->q_params.num_qps,
+					nic_dev->q_params.num_qps);
+	if (err) {
+		netdev_err(netdev, "Failed to set real number of queues\n");
+		goto err_disable_vport;
+	}
+	netif_tx_start_all_queues(netdev);
+
+	err = hinic3_get_link_status(nic_dev->hwdev, &link_status_up);
+	if (!err && link_status_up)
+		netif_carrier_on(netdev);
+
+	hinic3_print_link_message(netdev, link_status_up);
+
+	return 0;
+
+err_disable_vport:
+	hinic3_set_vport_enable(nic_dev->hwdev, glb_func_id, false);
+err_flush_qps_res:
+	hinic3_flush_qps_res(nic_dev->hwdev);
+	/* wait to guarantee that no packets will be sent to host */
+	msleep(100);
+
+	return err;
+}
+
+static void hinic3_vport_down(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 glb_func_id;
+
+	netif_carrier_off(netdev);
+	netif_tx_disable(netdev);
+
+	if (nic_dev->hwdev->chip_present_flag) {
+		hinic3_maybe_set_port_state(netdev, false);
+
+		glb_func_id = hinic3_global_func_id(nic_dev->hwdev);
+		hinic3_set_vport_enable(nic_dev->hwdev, glb_func_id, false);
+
+		hinic3_flush_txqs(netdev);
+		/* wait to guarantee that no packets will be sent to host */
+		msleep(100);
+		hinic3_flush_qps_res(nic_dev->hwdev);
+	}
+}
+
+static int hinic3_open(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_dyna_qp_params qp_params;
+	int err;
+
+	if (test_bit(HINIC3_INTF_UP, &nic_dev->flags)) {
+		netdev_dbg(netdev, "Netdev already open, do nothing\n");
+		return 0;
+	}
+
+	err = hinic3_init_nicio_res(nic_dev);
+	if (err) {
+		netdev_err(netdev, "Failed to init nicio resources\n");
+		return err;
+	}
+
+	err = hinic3_setup_num_qps(netdev);
+	if (err) {
+		netdev_err(netdev, "Failed to setup num_qps\n");
+		goto err_free_nicio_res;
+	}
+
+	err = hinic3_alloc_channel_resources(netdev, &qp_params,
+					     &nic_dev->q_params);
+	if (err)
+		goto err_destroy_num_qps;
+
+	hinic3_init_qps(nic_dev, &qp_params);
+
+	err = hinic3_open_channel(netdev);
+	if (err)
+		goto err_uninit_qps;
+
+	err = hinic3_vport_up(netdev);
+	if (err)
+		goto err_close_channel;
+
+	set_bit(HINIC3_INTF_UP, &nic_dev->flags);
+
+	return 0;
+
+err_close_channel:
+	hinic3_close_channel(netdev);
+err_uninit_qps:
+	hinic3_uninit_qps(nic_dev, &qp_params);
+	hinic3_free_channel_resources(netdev, &qp_params, &nic_dev->q_params);
+err_destroy_num_qps:
+	hinic3_destroy_num_qps(netdev);
+err_free_nicio_res:
+	hinic3_free_nicio_res(nic_dev);
+
+	return err;
+}
+
+static int hinic3_close(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_dyna_qp_params qp_params;
+
+	if (!test_and_clear_bit(HINIC3_INTF_UP, &nic_dev->flags)) {
+		netdev_dbg(netdev, "Netdev already close, do nothing\n");
+		return 0;
+	}
+
+	hinic3_vport_down(netdev);
+	hinic3_close_channel(netdev);
+	hinic3_uninit_qps(nic_dev, &qp_params);
+	hinic3_free_channel_resources(netdev, &qp_params, &nic_dev->q_params);
+
+	return 0;
+}
+
+#define SET_FEATURES_OP_STR(op)  ((op) ? "Enable" : "Disable")
+
+static int hinic3_set_feature_rx_csum(struct net_device *netdev,
+				      netdev_features_t wanted_features,
+				      netdev_features_t features,
+				      netdev_features_t *failed_features)
+{
+	netdev_features_t changed = wanted_features ^ features;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+
+	if (changed & NETIF_F_RXCSUM)
+		dev_dbg(hwdev->dev, "%s rx csum success\n",
+			SET_FEATURES_OP_STR(wanted_features & NETIF_F_RXCSUM));
+
+	return 0;
+}
+
+static int hinic3_set_feature_tso(struct net_device *netdev,
+				  netdev_features_t wanted_features,
+				  netdev_features_t features,
+				  netdev_features_t *failed_features)
+{
+	netdev_features_t changed = wanted_features ^ features;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+
+	if (changed & NETIF_F_TSO)
+		dev_dbg(hwdev->dev, "%s tso success\n",
+			SET_FEATURES_OP_STR(wanted_features & NETIF_F_TSO));
+
+	return 0;
+}
+
+static int hinic3_set_feature_lro(struct net_device *netdev,
+				  netdev_features_t wanted_features,
+				  netdev_features_t features,
+				  netdev_features_t *failed_features)
+{
+	netdev_features_t changed = wanted_features ^ features;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	bool en = !!(wanted_features & NETIF_F_LRO);
+	int err;
+
+	if (!(changed & NETIF_F_LRO))
+		return 0;
+
+	err = hinic3_set_rx_lro_state(hwdev, en,
+				      HINIC3_LRO_DEFAULT_TIME_LIMIT,
+				      HINIC3_LRO_DEFAULT_COAL_PKT_SIZE);
+	if (err) {
+		dev_err(hwdev->dev, "%s lro failed\n", SET_FEATURES_OP_STR(en));
+		*failed_features |= NETIF_F_LRO;
+	}
+
+	return err;
+}
+
+static int hinic3_set_feature_rx_cvlan(struct net_device *netdev,
+				       netdev_features_t wanted_features,
+				       netdev_features_t features,
+				       netdev_features_t *failed_features)
+{
+	bool en = !!(wanted_features & NETIF_F_HW_VLAN_CTAG_RX);
+	netdev_features_t changed = wanted_features ^ features;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	int err;
+
+	if (!(changed & NETIF_F_HW_VLAN_CTAG_RX))
+		return 0;
+
+	err = hinic3_set_rx_vlan_offload(hwdev, en);
+	if (err) {
+		dev_err(hwdev->dev, "%s rx vlan offload failed\n",
+			SET_FEATURES_OP_STR(en));
+		*failed_features |= NETIF_F_HW_VLAN_CTAG_RX;
+	}
+
+	return err;
+}
+
+static int hinic3_set_feature_vlan_filter(struct net_device *netdev,
+					  netdev_features_t wanted_features,
+					  netdev_features_t features,
+					  netdev_features_t *failed_features)
+{
+	bool en = !!(wanted_features & NETIF_F_HW_VLAN_CTAG_FILTER);
+	netdev_features_t changed = wanted_features ^ features;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	int err;
+
+	if (!(changed & NETIF_F_HW_VLAN_CTAG_FILTER))
+		return 0;
+
+	err = hinic3_set_vlan_filter(hwdev, en);
+	if (err) {
+		dev_err(hwdev->dev, "%s rx vlan filter failed\n",
+			SET_FEATURES_OP_STR(en));
+		*failed_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+	}
+
+	return err;
+}
+
+static int hinic3_set_features(struct net_device *netdev,
+			       netdev_features_t curr,
+			       netdev_features_t wanted)
+{
+	netdev_features_t failed = 0;
+	int err;
+
+	err = hinic3_set_feature_rx_csum(netdev, wanted, curr, &failed) |
+	      hinic3_set_feature_tso(netdev, wanted, curr, &failed) |
+	      hinic3_set_feature_lro(netdev, wanted, curr, &failed) |
+	      hinic3_set_feature_rx_cvlan(netdev, wanted, curr, &failed) |
+	      hinic3_set_feature_vlan_filter(netdev, wanted, curr, &failed);
+	if (err) {
+		netdev->features = wanted ^ failed;
+		return err;
+	}
+
+	return 0;
+}
+
+static int hinic3_ndo_set_features(struct net_device *netdev,
+				   netdev_features_t features)
+{
+	return hinic3_set_features(netdev, netdev->features, features);
+}
+
+static netdev_features_t hinic3_fix_features(struct net_device *netdev,
+					     netdev_features_t features)
+{
+	netdev_features_t features_tmp = features;
+
+	/* If Rx checksum is disabled, then LRO should also be disabled */
+	if (!(features_tmp & NETIF_F_RXCSUM))
+		features_tmp &= ~NETIF_F_LRO;
+
+	return features_tmp;
+}
+
+static netdev_features_t hinic3_features_check(struct sk_buff *skb,
+					       struct net_device *dev,
+					       netdev_features_t features)
+{
+	features = vlan_features_check(skb, features);
+	features = vxlan_features_check(skb, features);
+
+	return features;
+}
+
+int hinic3_set_hw_features(struct net_device *netdev)
+{
+	netdev_features_t wanted, curr;
+
+	wanted = netdev->features;
+	/* fake current features so all wanted are enabled */
+	curr = ~wanted;
+
+	return hinic3_set_features(netdev, curr, wanted);
+}
+
+static int hinic3_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	int err;
+
+	err = hinic3_set_port_mtu(netdev, new_mtu);
+	if (err) {
+		netdev_err(netdev, "Failed to change port mtu to %d\n",
+			   new_mtu);
+		return err;
+	}
+
+	netdev_dbg(netdev, "Change mtu from %u to %d\n", netdev->mtu, new_mtu);
+	WRITE_ONCE(netdev->mtu, new_mtu);
+
+	return 0;
+}
+
+static int hinic3_set_mac_addr(struct net_device *netdev, void *addr)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct sockaddr *saddr = addr;
+	int err;
+
+	if (!is_valid_ether_addr(saddr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	if (ether_addr_equal(netdev->dev_addr, saddr->sa_data))
+		return 0;
+
+	err = hinic3_update_mac(nic_dev->hwdev, netdev->dev_addr,
+				saddr->sa_data, 0,
+				hinic3_global_func_id(nic_dev->hwdev));
+
+	if (err)
+		return err;
+
+	eth_hw_addr_set(netdev, saddr->sa_data);
+
+	return 0;
+}
+
+static int hinic3_vlan_rx_add_vid(struct net_device *netdev,
+				  __be16 proto, u16 vid)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	unsigned long *vlan_bitmap = nic_dev->vlan_bitmap;
+	u32 column, row;
+	u16 func_id;
+	int err;
+
+	column = VID_COL(nic_dev, vid);
+	row = VID_LINE(nic_dev, vid);
+
+	func_id = hinic3_global_func_id(nic_dev->hwdev);
+
+	err = hinic3_add_vlan(nic_dev->hwdev, vid, func_id);
+	if (err) {
+		netdev_err(netdev, "Failed to add vlan %u\n", vid);
+		goto out;
+	}
+
+	set_bit(column, &vlan_bitmap[row]);
+	netdev_dbg(netdev, "Add vlan %u\n", vid);
+
+out:
+	return err;
+}
+
+static int hinic3_vlan_rx_kill_vid(struct net_device *netdev,
+				   __be16 proto, u16 vid)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	unsigned long *vlan_bitmap = nic_dev->vlan_bitmap;
+	u32 column, row;
+	u16 func_id;
+	int err;
+
+	column  = VID_COL(nic_dev, vid);
+	row = VID_LINE(nic_dev, vid);
+
+	func_id = hinic3_global_func_id(nic_dev->hwdev);
+	err = hinic3_del_vlan(nic_dev->hwdev, vid, func_id);
+	if (err) {
+		netdev_err(netdev, "Failed to delete vlan %u\n", vid);
+		goto out;
+	}
+
+	clear_bit(column, &vlan_bitmap[row]);
+	netdev_dbg(netdev, "Remove vlan %u\n", vid);
+
+out:
+	return err;
+}
+
+static void hinic3_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_io_queue *sq;
+	u16 sw_pi, hw_ci;
+
+	sq = nic_dev->txqs[txqueue].sq;
+	sw_pi = hinic3_get_sq_local_pi(sq);
+	hw_ci = hinic3_get_sq_hw_ci(sq);
+	netdev_dbg(netdev,
+		   "txq%u: sw_pi: %u, hw_ci: %u, sw_ci: %u, napi->state: 0x%lx.\n",
+		   txqueue, sw_pi, hw_ci, hinic3_get_sq_local_ci(sq),
+		   nic_dev->q_params.irq_cfg[txqueue].napi.state);
+
+	if (sw_pi != hw_ci)
+		set_bit(HINIC3_EVENT_WORK_TX_TIMEOUT, &nic_dev->event_flag);
+}
+
+static void hinic3_get_stats64(struct net_device *netdev,
+			       struct rtnl_link_stats64 *stats)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u64 bytes, packets, dropped, errors;
+	struct hinic3_txq_stats *txq_stats;
+	struct hinic3_rxq_stats *rxq_stats;
+	struct hinic3_txq *txq;
+	struct hinic3_rxq *rxq;
+	unsigned int start;
+	int i;
+
+	bytes = 0;
+	packets = 0;
+	dropped = 0;
+	for (i = 0; i < nic_dev->max_qps; i++) {
+		if (!nic_dev->txqs)
+			break;
+
+		txq = &nic_dev->txqs[i];
+		txq_stats = &txq->txq_stats;
+		do {
+			start = u64_stats_fetch_begin(&txq_stats->syncp);
+			bytes += txq_stats->bytes;
+			packets += txq_stats->packets;
+			dropped += txq_stats->dropped;
+		} while (u64_stats_fetch_retry(&txq_stats->syncp, start));
+	}
+	stats->tx_packets = packets;
+	stats->tx_bytes   = bytes;
+	stats->tx_dropped = dropped;
+
+	bytes = 0;
+	packets = 0;
+	errors = 0;
+	dropped = 0;
+	for (i = 0; i < nic_dev->max_qps; i++) {
+		if (!nic_dev->rxqs)
+			break;
+
+		rxq = &nic_dev->rxqs[i];
+		rxq_stats = &rxq->rxq_stats;
+		do {
+			start = u64_stats_fetch_begin(&rxq_stats->syncp);
+			bytes += rxq_stats->bytes;
+			packets += rxq_stats->packets;
+			errors += rxq_stats->csum_errors +
+				rxq_stats->other_errors;
+			dropped += rxq_stats->dropped;
+		} while (u64_stats_fetch_retry(&rxq_stats->syncp, start));
+	}
+	stats->rx_packets = packets;
+	stats->rx_bytes   = bytes;
+	stats->rx_errors  = errors;
+	stats->rx_dropped = dropped;
+}
+
+static void hinic3_nic_set_rx_mode(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	if (netdev_uc_count(netdev) != nic_dev->netdev_uc_cnt ||
+	    netdev_mc_count(netdev) != nic_dev->netdev_mc_cnt) {
+		set_bit(HINIC3_UPDATE_MAC_FILTER, &nic_dev->flags);
+		nic_dev->netdev_uc_cnt = netdev_uc_count(netdev);
+		nic_dev->netdev_mc_cnt = netdev_mc_count(netdev);
+	}
+
+	queue_work(nic_dev->workq, &nic_dev->rx_mode_work);
+}
+
+static const struct net_device_ops hinic3_netdev_ops = {
+	.ndo_open             = hinic3_open,
+	.ndo_stop             = hinic3_close,
+	.ndo_set_features     = hinic3_ndo_set_features,
+	.ndo_fix_features     = hinic3_fix_features,
+	.ndo_features_check   = hinic3_features_check,
+	.ndo_change_mtu       = hinic3_change_mtu,
+	.ndo_set_mac_address  = hinic3_set_mac_addr,
+	.ndo_validate_addr    = eth_validate_addr,
+	.ndo_vlan_rx_add_vid  = hinic3_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid = hinic3_vlan_rx_kill_vid,
+	.ndo_tx_timeout       = hinic3_tx_timeout,
+	.ndo_get_stats64      = hinic3_get_stats64,
+	.ndo_set_rx_mode      = hinic3_nic_set_rx_mode,
+	.ndo_start_xmit       = hinic3_xmit_frame,
+};
+
+void hinic3_set_netdev_ops(struct net_device *netdev)
+{
+	netdev->netdev_ops = &hinic3_netdev_ops;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_nic_cfg.c

@@ -0,0 +1,740 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/if_vlan.h>
+
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+#include "hinic3_nic_cfg.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_io.h"
+
+#define MGMT_MSG_CMD_OP_ADD  1
+#define MGMT_MSG_CMD_OP_DEL  0
+
+static int hinic3_feature_nego(struct hinic3_hwdev *hwdev, u8 opcode,
+			       u64 *s_feature, u16 size)
+{
+	struct l2nic_cmd_feature_nego feature_nego = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	feature_nego.func_id = hinic3_global_func_id(hwdev);
+	feature_nego.opcode = opcode;
+	if (opcode == MGMT_MSG_CMD_OP_SET)
+		memcpy(feature_nego.s_feature, s_feature,
+		       array_size(size, sizeof(u64)));
+
+	mgmt_msg_params_init_default(&msg_params, &feature_nego,
+				     sizeof(feature_nego));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_FEATURE_NEGO, &msg_params);
+	if (err || feature_nego.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to negotiate nic feature, err:%d, status: 0x%x\n",
+			err, feature_nego.msg_head.status);
+		return -EIO;
+	}
+
+	if (opcode == MGMT_MSG_CMD_OP_GET)
+		memcpy(s_feature, feature_nego.s_feature,
+		       array_size(size, sizeof(u64)));
+
+	return 0;
+}
+
+int hinic3_get_nic_feature_from_hw(struct hinic3_nic_dev *nic_dev)
+{
+	return hinic3_feature_nego(nic_dev->hwdev, MGMT_MSG_CMD_OP_GET,
+				   &nic_dev->nic_io->feature_cap, 1);
+}
+
+int hinic3_set_nic_feature_to_hw(struct hinic3_nic_dev *nic_dev)
+{
+	return hinic3_feature_nego(nic_dev->hwdev, MGMT_MSG_CMD_OP_SET,
+				   &nic_dev->nic_io->feature_cap, 1);
+}
+
+bool hinic3_test_support(struct hinic3_nic_dev *nic_dev,
+			 enum hinic3_nic_feature_cap feature_bits)
+{
+	return (nic_dev->nic_io->feature_cap & feature_bits) == feature_bits;
+}
+
+static int hinic3_set_rx_lro(struct hinic3_hwdev *hwdev, u8 ipv4_en, u8 ipv6_en,
+			     u8 lro_max_pkt_len)
+{
+	struct l2nic_cmd_lro_config lro_cfg = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	lro_cfg.func_id = hinic3_global_func_id(hwdev);
+	lro_cfg.opcode = MGMT_MSG_CMD_OP_SET;
+	lro_cfg.lro_ipv4_en = ipv4_en;
+	lro_cfg.lro_ipv6_en = ipv6_en;
+	lro_cfg.lro_max_pkt_len = lro_max_pkt_len;
+
+	mgmt_msg_params_init_default(&msg_params, &lro_cfg,
+				     sizeof(lro_cfg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_RX_LRO,
+				       &msg_params);
+
+	if (err || lro_cfg.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set lro offload, err: %d, status: 0x%x\n",
+			err, lro_cfg.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static int hinic3_set_rx_lro_timer(struct hinic3_hwdev *hwdev, u32 timer_value)
+{
+	struct l2nic_cmd_lro_timer lro_timer = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	lro_timer.opcode = MGMT_MSG_CMD_OP_SET;
+	lro_timer.timer = timer_value;
+
+	mgmt_msg_params_init_default(&msg_params, &lro_timer,
+				     sizeof(lro_timer));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_LRO_TIMER,
+				       &msg_params);
+
+	if (err || lro_timer.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set lro timer, err: %d, status: 0x%x\n",
+			err, lro_timer.msg_head.status);
+
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_set_rx_lro_state(struct hinic3_hwdev *hwdev, u8 lro_en,
+			    u32 lro_timer, u8 lro_max_pkt_len)
+{
+	u8 ipv4_en, ipv6_en;
+	int err;
+
+	ipv4_en = lro_en ? 1 : 0;
+	ipv6_en = lro_en ? 1 : 0;
+
+	dev_dbg(hwdev->dev, "Set LRO max coalesce packet size to %uK\n",
+		lro_max_pkt_len);
+
+	err = hinic3_set_rx_lro(hwdev, ipv4_en, ipv6_en, lro_max_pkt_len);
+	if (err)
+		return err;
+
+	/* we don't set LRO timer for VF */
+	if (HINIC3_IS_VF(hwdev))
+		return 0;
+
+	dev_dbg(hwdev->dev, "Set LRO timer to %u\n", lro_timer);
+
+	return hinic3_set_rx_lro_timer(hwdev, lro_timer);
+}
+
+int hinic3_set_rx_vlan_offload(struct hinic3_hwdev *hwdev, u8 en)
+{
+	struct l2nic_cmd_vlan_offload vlan_cfg = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	vlan_cfg.func_id = hinic3_global_func_id(hwdev);
+	vlan_cfg.vlan_offload = en;
+
+	mgmt_msg_params_init_default(&msg_params, &vlan_cfg,
+				     sizeof(vlan_cfg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_RX_VLAN_OFFLOAD,
+				       &msg_params);
+
+	if (err || vlan_cfg.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set rx vlan offload, err: %d, status: 0x%x\n",
+			err, vlan_cfg.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_set_vlan_filter(struct hinic3_hwdev *hwdev, u32 vlan_filter_ctrl)
+{
+	struct l2nic_cmd_set_vlan_filter vlan_filter = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	vlan_filter.func_id = hinic3_global_func_id(hwdev);
+	vlan_filter.vlan_filter_ctrl = vlan_filter_ctrl;
+
+	mgmt_msg_params_init_default(&msg_params, &vlan_filter,
+				     sizeof(vlan_filter));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_VLAN_FILTER_EN,
+				       &msg_params);
+
+	if (err || vlan_filter.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set vlan filter, err: %d, status: 0x%x\n",
+			err, vlan_filter.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+void hinic3_update_nic_feature(struct hinic3_nic_dev *nic_dev, u64 feature_cap)
+{
+	nic_dev->nic_io->feature_cap = feature_cap;
+}
+
+static int hinic3_set_function_table(struct hinic3_hwdev *hwdev, u32 cfg_bitmap,
+				     const struct l2nic_func_tbl_cfg *cfg)
+{
+	struct l2nic_cmd_set_func_tbl cmd_func_tbl = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	cmd_func_tbl.func_id = hinic3_global_func_id(hwdev);
+	cmd_func_tbl.cfg_bitmap = cfg_bitmap;
+	cmd_func_tbl.tbl_cfg = *cfg;
+
+	mgmt_msg_params_init_default(&msg_params, &cmd_func_tbl,
+				     sizeof(cmd_func_tbl));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_FUNC_TBL, &msg_params);
+	if (err || cmd_func_tbl.msg_head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set func table, bitmap: 0x%x, err: %d, status: 0x%x\n",
+			cfg_bitmap, err, cmd_func_tbl.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_init_function_table(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct l2nic_func_tbl_cfg func_tbl_cfg = {};
+	u32 cfg_bitmap;
+
+	func_tbl_cfg.mtu = 0x3FFF; /* default, max mtu */
+	func_tbl_cfg.rx_wqe_buf_size = nic_io->rx_buf_len;
+
+	cfg_bitmap = BIT(L2NIC_FUNC_TBL_CFG_INIT) |
+		     BIT(L2NIC_FUNC_TBL_CFG_MTU) |
+		     BIT(L2NIC_FUNC_TBL_CFG_RX_BUF_SIZE);
+
+	return hinic3_set_function_table(nic_dev->hwdev, cfg_bitmap,
+					 &func_tbl_cfg);
+}
+
+int hinic3_set_port_mtu(struct net_device *netdev, u16 new_mtu)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct l2nic_func_tbl_cfg func_tbl_cfg = {};
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+
+	func_tbl_cfg.mtu = new_mtu;
+
+	return hinic3_set_function_table(hwdev, BIT(L2NIC_FUNC_TBL_CFG_MTU),
+					 &func_tbl_cfg);
+}
+
+static bool hinic3_check_vf_set_by_pf(struct hinic3_hwdev *hwdev,
+				      u8 status)
+{
+	return HINIC3_IS_VF(hwdev) && status == HINIC3_PF_SET_VF_ALREADY;
+}
+
+static int hinic3_check_mac_info(struct hinic3_hwdev *hwdev, u8 status,
+				 u16 vlan_id)
+{
+	if ((status && status != MGMT_STATUS_EXIST) ||
+	    ((vlan_id & BIT(15)) && status == MGMT_STATUS_EXIST)) {
+		if (hinic3_check_vf_set_by_pf(hwdev, status))
+			return 0;
+
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int hinic3_get_default_mac(struct hinic3_hwdev *hwdev, u8 *mac_addr)
+{
+	struct l2nic_cmd_set_mac mac_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	mac_info.func_id = hinic3_global_func_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &mac_info, sizeof(mac_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_GET_MAC,
+				       &msg_params);
+
+	if (err || mac_info.msg_head.status) {
+		dev_err(hwdev->dev,
+			"Failed to get mac, err: %d, status: 0x%x\n",
+			err, mac_info.msg_head.status);
+		return -EFAULT;
+	}
+
+	ether_addr_copy(mac_addr, mac_info.mac);
+
+	return 0;
+}
+
+int hinic3_set_mac(struct hinic3_hwdev *hwdev, const u8 *mac_addr, u16 vlan_id,
+		   u16 func_id)
+{
+	struct l2nic_cmd_set_mac mac_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	if ((vlan_id & HINIC3_VLAN_ID_MASK) >= VLAN_N_VID) {
+		dev_err(hwdev->dev, "Invalid VLAN number: %d\n",
+			(vlan_id & HINIC3_VLAN_ID_MASK));
+		return -EINVAL;
+	}
+
+	mac_info.func_id = func_id;
+	mac_info.vlan_id = vlan_id;
+	ether_addr_copy(mac_info.mac, mac_addr);
+
+	mgmt_msg_params_init_default(&msg_params, &mac_info, sizeof(mac_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_MAC, &msg_params);
+	if (err || hinic3_check_mac_info(hwdev, mac_info.msg_head.status,
+					 mac_info.vlan_id)) {
+		dev_err(hwdev->dev,
+			"Failed to update MAC, err: %d, status: 0x%x\n",
+			err, mac_info.msg_head.status);
+		return -EIO;
+	}
+
+	if (hinic3_check_vf_set_by_pf(hwdev, mac_info.msg_head.status)) {
+		dev_warn(hwdev->dev, "PF has already set VF mac, Ignore set operation\n");
+		return -EADDRINUSE;
+	}
+
+	if (mac_info.msg_head.status == MGMT_STATUS_EXIST) {
+		dev_warn(hwdev->dev, "MAC is repeated. Ignore update operation\n");
+		return 0;
+	}
+
+	return 0;
+}
+
+int hinic3_del_mac(struct hinic3_hwdev *hwdev, const u8 *mac_addr, u16 vlan_id,
+		   u16 func_id)
+{
+	struct l2nic_cmd_set_mac mac_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	if ((vlan_id & HINIC3_VLAN_ID_MASK) >= VLAN_N_VID) {
+		dev_err(hwdev->dev, "Invalid VLAN number: %d\n",
+			(vlan_id & HINIC3_VLAN_ID_MASK));
+		return -EINVAL;
+	}
+
+	mac_info.func_id = func_id;
+	mac_info.vlan_id = vlan_id;
+	ether_addr_copy(mac_info.mac, mac_addr);
+
+	mgmt_msg_params_init_default(&msg_params, &mac_info, sizeof(mac_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_DEL_MAC, &msg_params);
+	if (err ||
+	    (mac_info.msg_head.status &&
+	     !hinic3_check_vf_set_by_pf(hwdev, mac_info.msg_head.status))) {
+		dev_err(hwdev->dev,
+			"Failed to delete MAC, err: %d, status: 0x%x\n",
+			err, mac_info.msg_head.status);
+		return -EFAULT;
+	}
+
+	if (hinic3_check_vf_set_by_pf(hwdev, mac_info.msg_head.status)) {
+		dev_warn(hwdev->dev, "PF has already set VF mac, Ignore delete operation.\n");
+		return -EADDRINUSE;
+	}
+
+	return 0;
+}
+
+int hinic3_update_mac(struct hinic3_hwdev *hwdev, const u8 *old_mac,
+		      u8 *new_mac, u16 vlan_id, u16 func_id)
+{
+	struct l2nic_cmd_update_mac mac_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	if ((vlan_id & HINIC3_VLAN_ID_MASK) >= VLAN_N_VID) {
+		dev_err(hwdev->dev, "Invalid VLAN number: %d\n",
+			(vlan_id & HINIC3_VLAN_ID_MASK));
+		return -EINVAL;
+	}
+
+	mac_info.func_id = func_id;
+	mac_info.vlan_id = vlan_id;
+	ether_addr_copy(mac_info.old_mac, old_mac);
+	ether_addr_copy(mac_info.new_mac, new_mac);
+
+	mgmt_msg_params_init_default(&msg_params, &mac_info, sizeof(mac_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_UPDATE_MAC, &msg_params);
+	if (err || hinic3_check_mac_info(hwdev, mac_info.msg_head.status,
+					 mac_info.vlan_id)) {
+		dev_err(hwdev->dev,
+			"Failed to update MAC, err: %d, status: 0x%x\n",
+			err, mac_info.msg_head.status);
+		return -EIO;
+	}
+
+	if (hinic3_check_vf_set_by_pf(hwdev, mac_info.msg_head.status)) {
+		dev_warn(hwdev->dev, "PF has already set VF MAC. Ignore update operation\n");
+		return -EADDRINUSE;
+	}
+
+	if (mac_info.msg_head.status == HINIC3_MGMT_STATUS_EXIST) {
+		dev_warn(hwdev->dev,
+			 "MAC is repeated. Ignore update operation\n");
+		return 0;
+	}
+
+	return 0;
+}
+
+int hinic3_set_ci_table(struct hinic3_hwdev *hwdev, struct hinic3_sq_attr *attr)
+{
+	struct l2nic_cmd_set_ci_attr cons_idx_attr = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	cons_idx_attr.func_idx = hinic3_global_func_id(hwdev);
+	cons_idx_attr.dma_attr_off  = attr->dma_attr_off;
+	cons_idx_attr.pending_limit = attr->pending_limit;
+	cons_idx_attr.coalescing_time  = attr->coalescing_time;
+
+	if (attr->intr_en) {
+		cons_idx_attr.intr_en = attr->intr_en;
+		cons_idx_attr.intr_idx = attr->intr_idx;
+	}
+
+	cons_idx_attr.l2nic_sqn = attr->l2nic_sqn;
+	cons_idx_attr.ci_addr = attr->ci_dma_base;
+
+	mgmt_msg_params_init_default(&msg_params, &cons_idx_attr,
+				     sizeof(cons_idx_attr));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_SQ_CI_ATTR, &msg_params);
+	if (err || cons_idx_attr.msg_head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set ci attribute table, err: %d, status: 0x%x\n",
+			err, cons_idx_attr.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_flush_qps_res(struct hinic3_hwdev *hwdev)
+{
+	struct l2nic_cmd_clear_qp_resource sq_res = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	sq_res.func_id = hinic3_global_func_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &sq_res, sizeof(sq_res));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CLEAR_QP_RESOURCE,
+				       &msg_params);
+	if (err || sq_res.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to clear sq resources, err: %d, status: 0x%x\n",
+			err, sq_res.msg_head.status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+int hinic3_force_drop_tx_pkt(struct hinic3_hwdev *hwdev)
+{
+	struct l2nic_cmd_force_pkt_drop pkt_drop = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	pkt_drop.port = hinic3_physical_port_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &pkt_drop, sizeof(pkt_drop));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_FORCE_PKT_DROP, &msg_params);
+	if ((pkt_drop.msg_head.status != MGMT_STATUS_CMD_UNSUPPORTED &&
+	     pkt_drop.msg_head.status) || err) {
+		dev_err(hwdev->dev,
+			"Failed to set force tx packets drop, err: %d, status: 0x%x\n",
+			err, pkt_drop.msg_head.status);
+		return -EFAULT;
+	}
+
+	return pkt_drop.msg_head.status;
+}
+
+int hinic3_set_rx_mode(struct hinic3_hwdev *hwdev, u32 rx_mode)
+{
+	struct l2nic_rx_mode_config rx_mode_cfg = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	rx_mode_cfg.func_id = hinic3_global_func_id(hwdev);
+	rx_mode_cfg.rx_mode = rx_mode;
+
+	mgmt_msg_params_init_default(&msg_params, &rx_mode_cfg,
+				     sizeof(rx_mode_cfg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_RX_MODE, &msg_params);
+
+	if (err || rx_mode_cfg.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set rx mode, err: %d, status: 0x%x\n",
+			err, rx_mode_cfg.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static int hinic3_config_vlan(struct hinic3_hwdev *hwdev,
+			      u8 opcode, u16 vlan_id, u16 func_id)
+{
+	struct l2nic_cmd_vlan_config vlan_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	vlan_info.opcode = opcode;
+	vlan_info.func_id = func_id;
+	vlan_info.vlan_id = vlan_id;
+
+	mgmt_msg_params_init_default(&msg_params, &vlan_info,
+				     sizeof(vlan_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_FUNC_VLAN, &msg_params);
+
+	if (err || vlan_info.msg_head.status) {
+		dev_err(hwdev->dev,
+			"Failed to %s vlan, err: %d, status: 0x%x\n",
+			opcode == MGMT_MSG_CMD_OP_ADD ? "add" : "delete",
+			err, vlan_info.msg_head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_add_vlan(struct hinic3_hwdev *hwdev, u16 vlan_id, u16 func_id)
+{
+	return hinic3_config_vlan(hwdev, MGMT_MSG_CMD_OP_ADD, vlan_id, func_id);
+}
+
+int hinic3_del_vlan(struct hinic3_hwdev *hwdev, u16 vlan_id, u16 func_id)
+{
+	return hinic3_config_vlan(hwdev, MGMT_MSG_CMD_OP_DEL, vlan_id, func_id);
+}
+
+int hinic3_set_port_enable(struct hinic3_hwdev *hwdev, bool enable)
+{
+	struct mag_cmd_set_port_enable en_state = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	if (HINIC3_IS_VF(hwdev))
+		return 0;
+
+	en_state.function_id = hinic3_global_func_id(hwdev);
+	en_state.state = enable ? MAG_CMD_TX_ENABLE | MAG_CMD_RX_ENABLE :
+				MAG_CMD_PORT_DISABLE;
+
+	mgmt_msg_params_init_default(&msg_params, &en_state,
+				     sizeof(en_state));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_HILINK,
+				       MAG_CMD_SET_PORT_ENABLE, &msg_params);
+
+	if (err || en_state.head.status) {
+		dev_err(hwdev->dev, "Failed to set port state, err: %d, status: 0x%x\n",
+			err, en_state.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_sync_dcb_state(struct hinic3_hwdev *hwdev, u8 op_code, u8 state)
+{
+	struct l2nic_cmd_set_dcb_state dcb_state = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	dcb_state.op_code = op_code;
+	dcb_state.state = state;
+	dcb_state.func_id = hinic3_global_func_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &dcb_state,
+				     sizeof(dcb_state));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_QOS_DCB_STATE, &msg_params);
+	if (err || dcb_state.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to set dcb state, err: %d, status: 0x%x\n",
+			err, dcb_state.head.status);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+int hinic3_get_link_status(struct hinic3_hwdev *hwdev, bool *link_status_up)
+{
+	struct mag_cmd_get_link_status get_link = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	get_link.port_id = hinic3_physical_port_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &get_link, sizeof(get_link));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_HILINK,
+				       MAG_CMD_GET_LINK_STATUS, &msg_params);
+	if (err || get_link.head.status) {
+		dev_err(hwdev->dev, "Failed to get link state, err: %d, status: 0x%x\n",
+			err, get_link.head.status);
+		return -EIO;
+	}
+
+	*link_status_up = !!get_link.status;
+
+	return 0;
+}
+
+int hinic3_get_port_info(struct hinic3_hwdev *hwdev,
+			 struct hinic3_nic_port_info *port_info)
+{
+	struct mag_cmd_get_port_info port_msg = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	port_msg.port_id = hinic3_physical_port_id(hwdev);
+
+	mgmt_msg_params_init_default(&msg_params, &port_msg, sizeof(port_msg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_HILINK,
+				       MAG_CMD_GET_PORT_INFO, &msg_params);
+
+	if (err || port_msg.head.status) {
+		dev_err(hwdev->dev,
+			"Failed to get port info, err: %d, status: 0x%x\n",
+			err, port_msg.head.status);
+		return -EFAULT;
+	}
+
+	port_info->autoneg_cap = port_msg.an_support;
+	port_info->autoneg_state = port_msg.an_en;
+	port_info->duplex = port_msg.duplex;
+	port_info->port_type = port_msg.wire_type;
+	port_info->speed = port_msg.speed;
+	port_info->fec = port_msg.fec;
+	port_info->supported_mode = port_msg.supported_mode;
+	port_info->advertised_mode = port_msg.advertised_mode;
+
+	return 0;
+}
+
+int hinic3_set_vport_enable(struct hinic3_hwdev *hwdev, u16 func_id,
+			    bool enable)
+{
+	struct l2nic_cmd_set_vport_state en_state = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	en_state.func_id = func_id;
+	en_state.state = enable ? 1 : 0;
+
+	mgmt_msg_params_init_default(&msg_params, &en_state, sizeof(en_state));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_VPORT_ENABLE, &msg_params);
+	if (err || en_state.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set vport state, err: %d, status: 0x%x\n",
+			err, en_state.msg_head.status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int hinic3_cfg_hw_pause(struct hinic3_hwdev *hwdev, u8 opcode,
+			       struct hinic3_nic_pause_config *nic_pause)
+{
+	struct l2nic_cmd_pause_config pause_info = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	pause_info.port_id = hinic3_physical_port_id(hwdev);
+	pause_info.opcode = opcode;
+	if (opcode == MGMT_MSG_CMD_OP_SET) {
+		pause_info.auto_neg = nic_pause->auto_neg;
+		pause_info.rx_pause = nic_pause->rx_pause;
+		pause_info.tx_pause = nic_pause->tx_pause;
+	}
+
+	mgmt_msg_params_init_default(&msg_params, &pause_info,
+				     sizeof(pause_info));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_PAUSE_INFO, &msg_params);
+
+	if (err || pause_info.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to %s pause info, err: %d, status: 0x%x\n",
+			opcode == MGMT_MSG_CMD_OP_SET ? "set" : "get",
+			err, pause_info.msg_head.status);
+		return -EFAULT;
+	}
+
+	if (opcode == MGMT_MSG_CMD_OP_GET) {
+		nic_pause->auto_neg = pause_info.auto_neg;
+		nic_pause->rx_pause = pause_info.rx_pause;
+		nic_pause->tx_pause = pause_info.tx_pause;
+	}
+
+	return 0;
+}
+
+int hinic3_get_pause_info(struct hinic3_nic_dev *nic_dev,
+			  struct hinic3_nic_pause_config *nic_pause)
+{
+	return hinic3_cfg_hw_pause(nic_dev->hwdev, MGMT_MSG_CMD_OP_GET,
+				   nic_pause);
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_nic_cfg.h

@@ -0,0 +1,218 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_NIC_CFG_H_
+#define _HINIC3_NIC_CFG_H_
+
+#include <linux/types.h>
+
+#include "hinic3_hwif.h"
+#include "hinic3_hw_intf.h"
+#include "hinic3_mgmt_interface.h"
+
+struct hinic3_hwdev;
+struct hinic3_nic_dev;
+
+#define HINIC3_MIN_MTU_SIZE          256
+#define HINIC3_MAX_JUMBO_FRAME_SIZE  9600
+
+#define HINIC3_VLAN_ID_MASK          0x7FFF
+#define HINIC3_PF_SET_VF_ALREADY     0x4
+#define HINIC3_MGMT_STATUS_EXIST     0x6
+
+enum hinic3_nic_event_type {
+	HINIC3_NIC_EVENT_LINK_DOWN = 0,
+	HINIC3_NIC_EVENT_LINK_UP   = 1,
+	HINIC3_NIC_EVENT_PORT_MODULE_EVENT = 2,
+};
+
+struct hinic3_sq_attr {
+	u8  dma_attr_off;
+	u8  pending_limit;
+	u8  coalescing_time;
+	u8  intr_en;
+	u16 intr_idx;
+	u32 l2nic_sqn;
+	u64 ci_dma_base;
+};
+
+enum mag_cmd_port_an {
+	PORT_CFG_AN_ON  = 1,
+};
+
+/* mag supported/advertised link mode bitmap */
+enum mag_cmd_link_mode {
+	LINK_MODE_GE            = 0,
+	LINK_MODE_10GE_BASE_R   = 1,
+	LINK_MODE_25GE_BASE_R   = 2,
+	LINK_MODE_40GE_BASE_R4  = 3,
+	LINK_MODE_50GE_BASE_R   = 4,
+	LINK_MODE_50GE_BASE_R2  = 5,
+	LINK_MODE_100GE_BASE_R  = 6,
+	LINK_MODE_100GE_BASE_R2 = 7,
+	LINK_MODE_100GE_BASE_R4 = 8,
+	LINK_MODE_200GE_BASE_R2 = 9,
+	LINK_MODE_200GE_BASE_R4 = 10,
+	LINK_MODE_MAX_NUMBERS,
+
+	LINK_MODE_UNKNOWN       = 0xFFFF
+};
+
+struct mag_cmd_get_port_info {
+	struct mgmt_msg_head head;
+
+	u8                   port_id;
+	u8                   rsvd0[3];
+
+	u8                   wire_type;
+	u8                   an_support;
+	u8                   an_en;
+	u8                   duplex;
+
+	u8                   speed;
+	u8                   fec;
+	u8                   lanes;
+	u8                   rsvd1;
+
+	u32                  supported_mode;
+	u32                  advertised_mode;
+	u8                   rsvd2[8];
+};
+
+#define MAG_CMD_PORT_DISABLE    0x0
+#define MAG_CMD_TX_ENABLE       0x1
+#define MAG_CMD_RX_ENABLE       0x2
+/* the physical port is disabled only when all pf of the port are set to down,
+ * if any pf is enabled, the port is enabled
+ */
+struct mag_cmd_set_port_enable {
+	struct mgmt_msg_head head;
+
+	u16                  function_id;
+	u16                  rsvd0;
+
+	/* bitmap bit0:tx_en bit1:rx_en */
+	u8                   state;
+	u8                   rsvd1[3];
+};
+
+/* xsfp wire type, refers to cmis protocol definition */
+enum mag_wire_type {
+	MAG_CMD_WIRE_TYPE_UNKNOWN   = 0x0,
+	MAG_CMD_WIRE_TYPE_MM        = 0x1,
+	MAG_CMD_WIRE_TYPE_SM        = 0x2,
+	MAG_CMD_WIRE_TYPE_COPPER    = 0x3,
+	MAG_CMD_WIRE_TYPE_ACC       = 0x4,
+	MAG_CMD_WIRE_TYPE_BASET     = 0x5,
+	MAG_CMD_WIRE_TYPE_AOC       = 0x40,
+	MAG_CMD_WIRE_TYPE_ELECTRIC  = 0x41,
+	MAG_CMD_WIRE_TYPE_BACKPLANE = 0x42
+};
+
+#define XSFP_INFO_MAX_SIZE    640
+struct mag_cmd_get_xsfp_info {
+	struct mgmt_msg_head head;
+
+	u8                   port_id;
+	u8                   wire_type;
+	u16                  out_len;
+	u32                  rsvd;
+	u8                   sfp_info[XSFP_INFO_MAX_SIZE];
+};
+
+struct mag_cmd_get_xsfp_present {
+	struct mgmt_msg_head head;
+
+	u8                   port_id;
+	/* 0:present, 1:absent */
+	u8                   abs_status;
+	u8                   rsvd[2];
+};
+
+enum link_err_type {
+	LINK_ERR_MODULE_UNRECOGENIZED,
+	LINK_ERR_NUM,
+};
+
+enum port_module_event_type {
+	HINIC3_PORT_MODULE_CABLE_PLUGGED,
+	HINIC3_PORT_MODULE_CABLE_UNPLUGGED,
+	HINIC3_PORT_MODULE_LINK_ERR,
+	HINIC3_PORT_MODULE_MAX_EVENT,
+};
+
+struct hinic3_port_module_event {
+	enum port_module_event_type type;
+	enum link_err_type          err_type;
+};
+
+struct hinic3_nic_port_info {
+	u8  port_type;
+	u8  autoneg_cap;
+	u8  autoneg_state;
+	u8  duplex;
+	u8  speed;
+	u8  fec;
+	u32 supported_mode;
+	u32 advertised_mode;
+};
+
+struct hinic3_nic_pause_config {
+	u8 auto_neg;
+	u8 rx_pause;
+	u8 tx_pause;
+};
+
+struct hinic3_nic_cfg {
+	/* Valid when pfc is disabled */
+	bool                           pause_set;
+	struct hinic3_nic_pause_config nic_pause;
+
+	u8                             pfc_en;
+	u8                             pfc_bitmap;
+
+	struct hinic3_nic_port_info    port_info;
+};
+
+int hinic3_get_nic_feature_from_hw(struct hinic3_nic_dev *nic_dev);
+int hinic3_set_nic_feature_to_hw(struct hinic3_nic_dev *nic_dev);
+bool hinic3_test_support(struct hinic3_nic_dev *nic_dev,
+			 enum hinic3_nic_feature_cap feature_bits);
+void hinic3_update_nic_feature(struct hinic3_nic_dev *nic_dev, u64 feature_cap);
+
+int hinic3_set_rx_lro_state(struct hinic3_hwdev *hwdev, u8 lro_en,
+			    u32 lro_timer, u8 lro_max_pkt_len);
+int hinic3_set_rx_vlan_offload(struct hinic3_hwdev *hwdev, u8 en);
+int hinic3_set_vlan_filter(struct hinic3_hwdev *hwdev, u32 vlan_filter_ctrl);
+
+int hinic3_init_function_table(struct hinic3_nic_dev *nic_dev);
+int hinic3_set_port_mtu(struct net_device *netdev, u16 new_mtu);
+
+int hinic3_get_default_mac(struct hinic3_hwdev *hwdev, u8 *mac_addr);
+int hinic3_set_mac(struct hinic3_hwdev *hwdev, const u8 *mac_addr, u16 vlan_id,
+		   u16 func_id);
+int hinic3_del_mac(struct hinic3_hwdev *hwdev, const u8 *mac_addr, u16 vlan_id,
+		   u16 func_id);
+int hinic3_update_mac(struct hinic3_hwdev *hwdev, const u8 *old_mac,
+		      u8 *new_mac, u16 vlan_id, u16 func_id);
+
+int hinic3_set_ci_table(struct hinic3_hwdev *hwdev,
+			struct hinic3_sq_attr *attr);
+int hinic3_flush_qps_res(struct hinic3_hwdev *hwdev);
+int hinic3_force_drop_tx_pkt(struct hinic3_hwdev *hwdev);
+int hinic3_set_rx_mode(struct hinic3_hwdev *hwdev, u32 rx_mode);
+
+int hinic3_sync_dcb_state(struct hinic3_hwdev *hwdev, u8 op_code, u8 state);
+int hinic3_set_port_enable(struct hinic3_hwdev *hwdev, bool enable);
+int hinic3_get_link_status(struct hinic3_hwdev *hwdev, bool *link_status_up);
+int hinic3_get_port_info(struct hinic3_hwdev *hwdev,
+			 struct hinic3_nic_port_info *port_info);
+int hinic3_set_vport_enable(struct hinic3_hwdev *hwdev, u16 func_id,
+			    bool enable);
+int hinic3_add_vlan(struct hinic3_hwdev *hwdev, u16 vlan_id, u16 func_id);
+int hinic3_del_vlan(struct hinic3_hwdev *hwdev, u16 vlan_id, u16 func_id);
+
+int hinic3_get_pause_info(struct hinic3_nic_dev *nic_dev,
+			  struct hinic3_nic_pause_config *nic_pause);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_nic_dev.h

@@ -0,0 +1,154 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_NIC_DEV_H_
+#define _HINIC3_NIC_DEV_H_
+
+#include <linux/if_vlan.h>
+#include <linux/netdevice.h>
+
+#include "hinic3_hw_cfg.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_mgmt_interface.h"
+
+#define HINIC3_VLAN_BITMAP_BYTE_SIZE(nic_dev)  (sizeof(*(nic_dev)->vlan_bitmap))
+#define HINIC3_VLAN_BITMAP_SIZE(nic_dev)  \
+	(VLAN_N_VID / HINIC3_VLAN_BITMAP_BYTE_SIZE(nic_dev))
+
+enum hinic3_flags {
+	HINIC3_INTF_UP,
+	HINIC3_MAC_FILTER_CHANGED,
+	HINIC3_RSS_ENABLE,
+	HINIC3_UPDATE_MAC_FILTER,
+};
+
+enum hinic3_event_work_flags {
+	HINIC3_EVENT_WORK_TX_TIMEOUT,
+};
+
+enum hinic3_rx_mode_state {
+	HINIC3_HW_PROMISC_ON,
+	HINIC3_HW_ALLMULTI_ON,
+	HINIC3_PROMISC_FORCE_ON,
+	HINIC3_ALLMULTI_FORCE_ON,
+};
+
+enum hinic3_mac_filter_state {
+	HINIC3_MAC_WAIT_HW_SYNC,
+	HINIC3_MAC_HW_SYNCING,
+	HINIC3_MAC_HW_SYNCED,
+	HINIC3_MAC_WAIT_HW_UNSYNC,
+	HINIC3_MAC_HW_UNSYNCED,
+};
+
+struct hinic3_mac_filter {
+	struct list_head list;
+	u8               addr[ETH_ALEN];
+	unsigned long    state;
+};
+
+enum hinic3_rss_hash_type {
+	HINIC3_RSS_HASH_ENGINE_TYPE_XOR  = 0,
+	HINIC3_RSS_HASH_ENGINE_TYPE_TOEP = 1,
+};
+
+struct hinic3_rss_type {
+	u8 tcp_ipv6_ext;
+	u8 ipv6_ext;
+	u8 tcp_ipv6;
+	u8 ipv6;
+	u8 tcp_ipv4;
+	u8 ipv4;
+	u8 udp_ipv6;
+	u8 udp_ipv4;
+};
+
+struct hinic3_irq_cfg {
+	struct net_device  *netdev;
+	u16                msix_entry_idx;
+	/* provided by OS */
+	u32                irq_id;
+	char               irq_name[IFNAMSIZ + 16];
+	struct napi_struct napi;
+	cpumask_t          affinity_mask;
+	struct hinic3_txq  *txq;
+	struct hinic3_rxq  *rxq;
+	u16                total_events;
+};
+
+struct hinic3_dyna_txrxq_params {
+	u16                        num_qps;
+	u32                        sq_depth;
+	u32                        rq_depth;
+
+	struct hinic3_dyna_txq_res *txqs_res;
+	struct hinic3_dyna_rxq_res *rxqs_res;
+	struct hinic3_irq_cfg      *irq_cfg;
+};
+
+struct hinic3_intr_coal_info {
+	u8 pending_limit;
+	u8 coalesce_timer_cfg;
+	u8 resend_timer_cfg;
+
+	u8  rx_pending_limit_low;
+	u8  rx_pending_limit_high;
+};
+
+struct hinic3_nic_dev {
+	struct pci_dev                  *pdev;
+	struct net_device               *netdev;
+	struct hinic3_hwdev             *hwdev;
+	struct hinic3_nic_io            *nic_io;
+
+	u32                             msg_enable;
+	u16                             max_qps;
+	u16                             rx_buf_len;
+	u32                             lro_replenish_thld;
+	unsigned long                   *vlan_bitmap;
+	unsigned long                   flags;
+	struct hinic3_nic_service_cap   nic_svc_cap;
+
+	struct hinic3_dyna_txrxq_params q_params;
+	struct hinic3_txq               *txqs;
+	struct hinic3_rxq               *rxqs;
+
+	enum hinic3_rss_hash_type       rss_hash_type;
+	struct hinic3_rss_type          rss_type;
+	u8                              *rss_hkey;
+	u16                             *rss_indir;
+
+	u16                             num_qp_irq;
+	struct msix_entry               *qps_msix_entries;
+
+	struct hinic3_intr_coal_info    *intr_coalesce;
+	u32                             adaptive_rx_coal;
+
+	struct workqueue_struct         *workq;
+	struct delayed_work             periodic_work;
+	struct work_struct              rx_mode_work;
+	/* lock for enable/disable port */
+	struct mutex                    port_state_mutex;
+
+	struct list_head                uc_filter_list;
+	struct list_head                mc_filter_list;
+	unsigned long                   rx_mod_state;
+	int                             netdev_uc_cnt;
+	int                             netdev_mc_cnt;
+
+	/* flag bits defined by hinic3_event_work_flags */
+	unsigned long                   event_flag;
+	bool                            link_status_up;
+};
+
+void hinic3_set_netdev_ops(struct net_device *netdev);
+int hinic3_set_hw_features(struct net_device *netdev);
+int hinic3_qps_irq_init(struct net_device *netdev);
+void hinic3_qps_irq_uninit(struct net_device *netdev);
+
+void hinic3_set_rx_mode_work(struct work_struct *work);
+void hinic3_clean_mac_list_filter(struct net_device *netdev);
+
+void hinic3_set_ethtool_ops(struct net_device *netdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_nic_io.c

@@ -0,0 +1,889 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include "hinic3_cmdq.h"
+#include "hinic3_hw_comm.h"
+#include "hinic3_hw_intf.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_nic_cfg.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_io.h"
+
+#define HINIC3_DEFAULT_TX_CI_PENDING_LIMIT    1
+#define HINIC3_DEFAULT_TX_CI_COALESCING_TIME  1
+#define HINIC3_DEFAULT_DROP_THD_ON            (0xFFFF)
+#define HINIC3_DEFAULT_DROP_THD_OFF           0
+
+#define HINIC3_CI_Q_ADDR_SIZE                (64)
+
+#define HINIC3_CI_TABLE_SIZE(num_qps)  \
+	(ALIGN((num_qps) * HINIC3_CI_Q_ADDR_SIZE, HINIC3_MIN_PAGE_SIZE))
+
+#define HINIC3_CI_VADDR(base_addr, q_id)  \
+	((u8 *)(base_addr) + (q_id) * HINIC3_CI_Q_ADDR_SIZE)
+
+#define HINIC3_CI_PADDR(base_paddr, q_id)  \
+	((base_paddr) + (q_id) * HINIC3_CI_Q_ADDR_SIZE)
+
+#define SQ_WQ_PREFETCH_MAX        1
+#define SQ_WQ_PREFETCH_MIN        1
+#define SQ_WQ_PREFETCH_THRESHOLD  16
+
+#define RQ_WQ_PREFETCH_MAX        4
+#define RQ_WQ_PREFETCH_MIN        1
+#define RQ_WQ_PREFETCH_THRESHOLD  256
+
+/* (2048 - 8) / 64 */
+#define HINIC3_Q_CTXT_MAX         31
+
+enum hinic3_qp_ctxt_type {
+	HINIC3_QP_CTXT_TYPE_SQ = 0,
+	HINIC3_QP_CTXT_TYPE_RQ = 1,
+};
+
+struct hinic3_qp_ctxt_hdr {
+	__le16 num_queues;
+	__le16 queue_type;
+	__le16 start_qid;
+	__le16 rsvd;
+};
+
+struct hinic3_sq_ctxt {
+	__le32 ci_pi;
+	__le32 drop_mode_sp;
+	__le32 wq_pfn_hi_owner;
+	__le32 wq_pfn_lo;
+
+	__le32 rsvd0;
+	__le32 pkt_drop_thd;
+	__le32 global_sq_id;
+	__le32 vlan_ceq_attr;
+
+	__le32 pref_cache;
+	__le32 pref_ci_owner;
+	__le32 pref_wq_pfn_hi_ci;
+	__le32 pref_wq_pfn_lo;
+
+	__le32 rsvd8;
+	__le32 rsvd9;
+	__le32 wq_block_pfn_hi;
+	__le32 wq_block_pfn_lo;
+};
+
+struct hinic3_rq_ctxt {
+	__le32 ci_pi;
+	__le32 ceq_attr;
+	__le32 wq_pfn_hi_type_owner;
+	__le32 wq_pfn_lo;
+
+	__le32 rsvd[3];
+	__le32 cqe_sge_len;
+
+	__le32 pref_cache;
+	__le32 pref_ci_owner;
+	__le32 pref_wq_pfn_hi_ci;
+	__le32 pref_wq_pfn_lo;
+
+	__le32 pi_paddr_hi;
+	__le32 pi_paddr_lo;
+	__le32 wq_block_pfn_hi;
+	__le32 wq_block_pfn_lo;
+};
+
+struct hinic3_sq_ctxt_block {
+	struct hinic3_qp_ctxt_hdr cmdq_hdr;
+	struct hinic3_sq_ctxt     sq_ctxt[HINIC3_Q_CTXT_MAX];
+};
+
+struct hinic3_rq_ctxt_block {
+	struct hinic3_qp_ctxt_hdr cmdq_hdr;
+	struct hinic3_rq_ctxt     rq_ctxt[HINIC3_Q_CTXT_MAX];
+};
+
+struct hinic3_clean_queue_ctxt {
+	struct hinic3_qp_ctxt_hdr cmdq_hdr;
+	__le32                    rsvd;
+};
+
+#define SQ_CTXT_SIZE(num_sqs)  \
+	(sizeof(struct hinic3_qp_ctxt_hdr) +  \
+	(num_sqs) * sizeof(struct hinic3_sq_ctxt))
+
+#define RQ_CTXT_SIZE(num_rqs)  \
+	(sizeof(struct hinic3_qp_ctxt_hdr) +  \
+	(num_rqs) * sizeof(struct hinic3_rq_ctxt))
+
+#define SQ_CTXT_PREF_CI_HI_SHIFT           12
+#define SQ_CTXT_PREF_CI_HI(val)            ((val) >> SQ_CTXT_PREF_CI_HI_SHIFT)
+
+#define SQ_CTXT_PI_IDX_MASK                GENMASK(15, 0)
+#define SQ_CTXT_CI_IDX_MASK                GENMASK(31, 16)
+#define SQ_CTXT_CI_PI_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_##member##_MASK, val)
+
+#define SQ_CTXT_MODE_SP_FLAG_MASK          BIT(0)
+#define SQ_CTXT_MODE_PKT_DROP_MASK         BIT(1)
+#define SQ_CTXT_MODE_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_MODE_##member##_MASK, val)
+
+#define SQ_CTXT_WQ_PAGE_HI_PFN_MASK        GENMASK(19, 0)
+#define SQ_CTXT_WQ_PAGE_OWNER_MASK         BIT(23)
+#define SQ_CTXT_WQ_PAGE_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_WQ_PAGE_##member##_MASK, val)
+
+#define SQ_CTXT_PKT_DROP_THD_ON_MASK       GENMASK(15, 0)
+#define SQ_CTXT_PKT_DROP_THD_OFF_MASK      GENMASK(31, 16)
+#define SQ_CTXT_PKT_DROP_THD_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_PKT_DROP_##member##_MASK, val)
+
+#define SQ_CTXT_GLOBAL_SQ_ID_MASK          GENMASK(12, 0)
+#define SQ_CTXT_GLOBAL_QUEUE_ID_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_##member##_MASK, val)
+
+#define SQ_CTXT_VLAN_INSERT_MODE_MASK      GENMASK(20, 19)
+#define SQ_CTXT_VLAN_CEQ_EN_MASK           BIT(23)
+#define SQ_CTXT_VLAN_CEQ_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_VLAN_##member##_MASK, val)
+
+#define SQ_CTXT_PREF_CACHE_THRESHOLD_MASK  GENMASK(13, 0)
+#define SQ_CTXT_PREF_CACHE_MAX_MASK        GENMASK(24, 14)
+#define SQ_CTXT_PREF_CACHE_MIN_MASK        GENMASK(31, 25)
+
+#define SQ_CTXT_PREF_CI_HI_MASK            GENMASK(3, 0)
+#define SQ_CTXT_PREF_OWNER_MASK            BIT(4)
+
+#define SQ_CTXT_PREF_WQ_PFN_HI_MASK        GENMASK(19, 0)
+#define SQ_CTXT_PREF_CI_LOW_MASK           GENMASK(31, 20)
+#define SQ_CTXT_PREF_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_PREF_##member##_MASK, val)
+
+#define SQ_CTXT_WQ_BLOCK_PFN_HI_MASK       GENMASK(22, 0)
+#define SQ_CTXT_WQ_BLOCK_SET(val, member)  \
+	FIELD_PREP(SQ_CTXT_WQ_BLOCK_##member##_MASK, val)
+
+/* reuse SQ macro for RQ because the hardware format is identical */
+#define RQ_CTXT_PREF_CI_HI(val)            SQ_CTXT_PREF_CI_HI(val)
+
+#define RQ_CTXT_PI_IDX_MASK                GENMASK(15, 0)
+#define RQ_CTXT_CI_IDX_MASK                GENMASK(31, 16)
+#define RQ_CTXT_CI_PI_SET(val, member)  \
+	FIELD_PREP(RQ_CTXT_##member##_MASK, val)
+
+#define RQ_CTXT_CEQ_ATTR_INTR_MASK         GENMASK(30, 21)
+#define RQ_CTXT_CEQ_ATTR_EN_MASK           BIT(31)
+#define RQ_CTXT_CEQ_ATTR_SET(val, member)  \
+	FIELD_PREP(RQ_CTXT_CEQ_ATTR_##member##_MASK, val)
+
+#define RQ_CTXT_WQ_PAGE_HI_PFN_MASK        GENMASK(19, 0)
+#define RQ_CTXT_WQ_PAGE_WQE_TYPE_MASK      GENMASK(29, 28)
+#define RQ_CTXT_WQ_PAGE_OWNER_MASK         BIT(31)
+#define RQ_CTXT_WQ_PAGE_SET(val, member)  \
+	FIELD_PREP(RQ_CTXT_WQ_PAGE_##member##_MASK, val)
+
+#define RQ_CTXT_CQE_LEN_MASK               GENMASK(29, 28)
+#define RQ_CTXT_CQE_LEN_SET(val, member)  \
+	FIELD_PREP(RQ_CTXT_##member##_MASK, val)
+
+#define RQ_CTXT_PREF_CACHE_THRESHOLD_MASK  GENMASK(13, 0)
+#define RQ_CTXT_PREF_CACHE_MAX_MASK        GENMASK(24, 14)
+#define RQ_CTXT_PREF_CACHE_MIN_MASK        GENMASK(31, 25)
+
+#define RQ_CTXT_PREF_CI_HI_MASK            GENMASK(3, 0)
+#define RQ_CTXT_PREF_OWNER_MASK            BIT(4)
+
+#define RQ_CTXT_PREF_WQ_PFN_HI_MASK        GENMASK(19, 0)
+#define RQ_CTXT_PREF_CI_LOW_MASK           GENMASK(31, 20)
+#define RQ_CTXT_PREF_SET(val, member)  \
+	FIELD_PREP(RQ_CTXT_PREF_##member##_MASK, val)
+
+#define RQ_CTXT_WQ_BLOCK_PFN_HI_MASK       GENMASK(22, 0)
+#define RQ_CTXT_WQ_BLOCK_SET(val, member)  \
+	FIELD_PREP(RQ_CTXT_WQ_BLOCK_##member##_MASK, val)
+
+#define WQ_PAGE_PFN_SHIFT       12
+#define WQ_BLOCK_PFN_SHIFT      9
+#define WQ_PAGE_PFN(page_addr)  ((page_addr) >> WQ_PAGE_PFN_SHIFT)
+#define WQ_BLOCK_PFN(page_addr) ((page_addr) >> WQ_BLOCK_PFN_SHIFT)
+
+int hinic3_init_nic_io(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	struct hinic3_nic_io *nic_io;
+	int err;
+
+	nic_io = kzalloc_obj(*nic_io);
+	if (!nic_io)
+		return -ENOMEM;
+
+	nic_dev->nic_io = nic_io;
+
+	err = hinic3_set_func_svc_used_state(hwdev, COMM_FUNC_SVC_T_NIC, 1);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set function svc used state\n");
+		goto err_free_nicio;
+	}
+
+	err = hinic3_init_function_table(nic_dev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init function table\n");
+		goto err_clear_func_svc_used_state;
+	}
+
+	nic_io->rx_buf_len = nic_dev->rx_buf_len;
+
+	err = hinic3_get_nic_feature_from_hw(nic_dev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to get nic features\n");
+		goto err_clear_func_svc_used_state;
+	}
+
+	nic_io->feature_cap &= HINIC3_NIC_F_ALL_MASK;
+	nic_io->feature_cap &= HINIC3_NIC_DRV_DEFAULT_FEATURE;
+	dev_dbg(hwdev->dev, "nic features: 0x%llx\n\n", nic_io->feature_cap);
+
+	return 0;
+
+err_clear_func_svc_used_state:
+	hinic3_set_func_svc_used_state(hwdev, COMM_FUNC_SVC_T_NIC, 0);
+err_free_nicio:
+	nic_dev->nic_io = NULL;
+	kfree(nic_io);
+
+	return err;
+}
+
+void hinic3_free_nic_io(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+
+	hinic3_set_func_svc_used_state(nic_dev->hwdev, COMM_FUNC_SVC_T_NIC, 0);
+	nic_dev->nic_io = NULL;
+	kfree(nic_io);
+}
+
+int hinic3_init_nicio_res(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	void __iomem *db_base;
+	int err;
+
+	nic_io->max_qps = hinic3_func_max_qnum(hwdev);
+
+	err = hinic3_alloc_db_addr(hwdev, &db_base, NULL);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to allocate doorbell for sqs\n");
+		return err;
+	}
+	nic_io->sqs_db_addr = db_base;
+
+	err = hinic3_alloc_db_addr(hwdev, &db_base, NULL);
+	if (err) {
+		hinic3_free_db_addr(hwdev, nic_io->sqs_db_addr);
+		dev_err(hwdev->dev, "Failed to allocate doorbell for rqs\n");
+		return err;
+	}
+	nic_io->rqs_db_addr = db_base;
+
+	nic_io->ci_vaddr_base =
+		dma_alloc_coherent(hwdev->dev,
+				   HINIC3_CI_TABLE_SIZE(nic_io->max_qps),
+				   &nic_io->ci_dma_base,
+				   GFP_KERNEL);
+	if (!nic_io->ci_vaddr_base) {
+		hinic3_free_db_addr(hwdev, nic_io->sqs_db_addr);
+		hinic3_free_db_addr(hwdev, nic_io->rqs_db_addr);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void hinic3_free_nicio_res(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+
+	dma_free_coherent(hwdev->dev,
+			  HINIC3_CI_TABLE_SIZE(nic_io->max_qps),
+			  nic_io->ci_vaddr_base, nic_io->ci_dma_base);
+
+	hinic3_free_db_addr(hwdev, nic_io->sqs_db_addr);
+	hinic3_free_db_addr(hwdev, nic_io->rqs_db_addr);
+}
+
+static int hinic3_create_sq(struct hinic3_hwdev *hwdev,
+			    struct hinic3_io_queue *sq,
+			    u16 q_id, u32 sq_depth, u16 sq_msix_idx)
+{
+	int err;
+
+	/* sq used & hardware request init 1 */
+	sq->owner = 1;
+
+	sq->q_id = q_id;
+	sq->msix_entry_idx = sq_msix_idx;
+
+	err = hinic3_wq_create(hwdev, &sq->wq, sq_depth,
+			       BIT(HINIC3_SQ_WQEBB_SHIFT));
+	if (err) {
+		dev_err(hwdev->dev, "Failed to create tx queue %u wq\n",
+			q_id);
+		return err;
+	}
+
+	return 0;
+}
+
+static int hinic3_create_rq(struct hinic3_hwdev *hwdev,
+			    struct hinic3_io_queue *rq,
+			    u16 q_id, u32 rq_depth, u16 rq_msix_idx)
+{
+	int err;
+
+	rq->q_id = q_id;
+	rq->msix_entry_idx = rq_msix_idx;
+
+	err = hinic3_wq_create(hwdev, &rq->wq, rq_depth,
+			       BIT(HINIC3_RQ_WQEBB_SHIFT +
+				   HINIC3_NORMAL_RQ_WQE));
+	if (err) {
+		dev_err(hwdev->dev, "Failed to create rx queue %u wq\n",
+			q_id);
+		return err;
+	}
+
+	return 0;
+}
+
+static int hinic3_create_qp(struct hinic3_hwdev *hwdev,
+			    struct hinic3_io_queue *sq,
+			    struct hinic3_io_queue *rq, u16 q_id, u32 sq_depth,
+			    u32 rq_depth, u16 qp_msix_idx)
+{
+	int err;
+
+	err = hinic3_create_sq(hwdev, sq, q_id, sq_depth, qp_msix_idx);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to create sq, qid: %u\n",
+			q_id);
+		return err;
+	}
+
+	err = hinic3_create_rq(hwdev, rq, q_id, rq_depth, qp_msix_idx);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to create rq, qid: %u\n",
+			q_id);
+		goto err_destroy_sq_wq;
+	}
+
+	return 0;
+
+err_destroy_sq_wq:
+	hinic3_wq_destroy(hwdev, &sq->wq);
+
+	return err;
+}
+
+static void hinic3_destroy_qp(struct hinic3_hwdev *hwdev,
+			      struct hinic3_io_queue *sq,
+			      struct hinic3_io_queue *rq)
+{
+	hinic3_wq_destroy(hwdev, &sq->wq);
+	hinic3_wq_destroy(hwdev, &rq->wq);
+}
+
+int hinic3_alloc_qps(struct hinic3_nic_dev *nic_dev,
+		     struct hinic3_dyna_qp_params *qp_params)
+{
+	struct msix_entry *qps_msix_entries = nic_dev->qps_msix_entries;
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	struct hinic3_io_queue *sqs;
+	struct hinic3_io_queue *rqs;
+	u16 q_id;
+	int err;
+
+	if (qp_params->num_qps > nic_io->max_qps || !qp_params->num_qps)
+		return -EINVAL;
+
+	sqs = kzalloc_objs(*sqs, qp_params->num_qps);
+	if (!sqs) {
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	rqs = kzalloc_objs(*rqs, qp_params->num_qps);
+	if (!rqs) {
+		err = -ENOMEM;
+		goto err_free_sqs;
+	}
+
+	for (q_id = 0; q_id < qp_params->num_qps; q_id++) {
+		err = hinic3_create_qp(hwdev, &sqs[q_id], &rqs[q_id], q_id,
+				       qp_params->sq_depth, qp_params->rq_depth,
+				       qps_msix_entries[q_id].entry);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to allocate qp %u, err: %d\n",
+				q_id, err);
+			goto err_destroy_qp;
+		}
+	}
+
+	qp_params->sqs = sqs;
+	qp_params->rqs = rqs;
+
+	return 0;
+
+err_destroy_qp:
+	while (q_id > 0) {
+		q_id--;
+		hinic3_destroy_qp(hwdev, &sqs[q_id], &rqs[q_id]);
+	}
+	kfree(rqs);
+err_free_sqs:
+	kfree(sqs);
+err_out:
+	return err;
+}
+
+void hinic3_free_qps(struct hinic3_nic_dev *nic_dev,
+		     struct hinic3_dyna_qp_params *qp_params)
+{
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	u16 q_id;
+
+	for (q_id = 0; q_id < qp_params->num_qps; q_id++)
+		hinic3_destroy_qp(hwdev, &qp_params->sqs[q_id],
+				  &qp_params->rqs[q_id]);
+
+	kfree(qp_params->sqs);
+	kfree(qp_params->rqs);
+}
+
+void hinic3_init_qps(struct hinic3_nic_dev *nic_dev,
+		     struct hinic3_dyna_qp_params *qp_params)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_io_queue *sqs = qp_params->sqs;
+	struct hinic3_io_queue *rqs = qp_params->rqs;
+	u16 q_id;
+
+	nic_io->num_qps = qp_params->num_qps;
+	nic_io->sq = qp_params->sqs;
+	nic_io->rq = qp_params->rqs;
+	for (q_id = 0; q_id < nic_io->num_qps; q_id++) {
+		sqs[q_id].cons_idx_addr =
+			(u16 *)HINIC3_CI_VADDR(nic_io->ci_vaddr_base, q_id);
+		/* clear ci value */
+		WRITE_ONCE(*sqs[q_id].cons_idx_addr, 0);
+
+		sqs[q_id].db_addr = nic_io->sqs_db_addr;
+		rqs[q_id].db_addr = nic_io->rqs_db_addr;
+	}
+}
+
+void hinic3_uninit_qps(struct hinic3_nic_dev *nic_dev,
+		       struct hinic3_dyna_qp_params *qp_params)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+
+	qp_params->sqs = nic_io->sq;
+	qp_params->rqs = nic_io->rq;
+	qp_params->num_qps = nic_io->num_qps;
+}
+
+static void hinic3_qp_prepare_cmdq_header(struct hinic3_qp_ctxt_hdr *qp_ctxt_hdr,
+					  enum hinic3_qp_ctxt_type ctxt_type,
+					  u16 num_queues, u16 q_id)
+{
+	qp_ctxt_hdr->queue_type = cpu_to_le16(ctxt_type);
+	qp_ctxt_hdr->num_queues = cpu_to_le16(num_queues);
+	qp_ctxt_hdr->start_qid = cpu_to_le16(q_id);
+	qp_ctxt_hdr->rsvd = 0;
+}
+
+static void hinic3_sq_prepare_ctxt(struct hinic3_io_queue *sq, u16 sq_id,
+				   struct hinic3_sq_ctxt *sq_ctxt)
+{
+	u64 wq_page_addr, wq_page_pfn, wq_block_pfn;
+	u32 wq_block_pfn_hi, wq_block_pfn_lo;
+	u32 wq_page_pfn_hi, wq_page_pfn_lo;
+	u16 pi_start, ci_start;
+
+	ci_start = hinic3_get_sq_local_ci(sq);
+	pi_start = hinic3_get_sq_local_pi(sq);
+
+	wq_page_addr = hinic3_wq_get_first_wqe_page_addr(&sq->wq);
+
+	wq_page_pfn = WQ_PAGE_PFN(wq_page_addr);
+	wq_page_pfn_hi = upper_32_bits(wq_page_pfn);
+	wq_page_pfn_lo = lower_32_bits(wq_page_pfn);
+
+	wq_block_pfn = WQ_BLOCK_PFN(sq->wq.wq_block_paddr);
+	wq_block_pfn_hi = upper_32_bits(wq_block_pfn);
+	wq_block_pfn_lo = lower_32_bits(wq_block_pfn);
+
+	sq_ctxt->ci_pi =
+		cpu_to_le32(SQ_CTXT_CI_PI_SET(ci_start, CI_IDX) |
+			    SQ_CTXT_CI_PI_SET(pi_start, PI_IDX));
+
+	sq_ctxt->drop_mode_sp =
+		cpu_to_le32(SQ_CTXT_MODE_SET(0, SP_FLAG) |
+			    SQ_CTXT_MODE_SET(0, PKT_DROP));
+
+	sq_ctxt->wq_pfn_hi_owner =
+		cpu_to_le32(SQ_CTXT_WQ_PAGE_SET(wq_page_pfn_hi, HI_PFN) |
+			    SQ_CTXT_WQ_PAGE_SET(1, OWNER));
+
+	sq_ctxt->wq_pfn_lo = cpu_to_le32(wq_page_pfn_lo);
+
+	sq_ctxt->pkt_drop_thd =
+		cpu_to_le32(SQ_CTXT_PKT_DROP_THD_SET(HINIC3_DEFAULT_DROP_THD_ON, THD_ON) |
+			    SQ_CTXT_PKT_DROP_THD_SET(HINIC3_DEFAULT_DROP_THD_OFF, THD_OFF));
+
+	sq_ctxt->global_sq_id =
+		cpu_to_le32(SQ_CTXT_GLOBAL_QUEUE_ID_SET((u32)sq_id,
+							GLOBAL_SQ_ID));
+
+	/* enable insert c-vlan by default */
+	sq_ctxt->vlan_ceq_attr =
+		cpu_to_le32(SQ_CTXT_VLAN_CEQ_SET(0, CEQ_EN) |
+			    SQ_CTXT_VLAN_CEQ_SET(1, INSERT_MODE));
+
+	sq_ctxt->rsvd0 = 0;
+
+	sq_ctxt->pref_cache =
+		cpu_to_le32(SQ_CTXT_PREF_SET(SQ_WQ_PREFETCH_MIN, CACHE_MIN) |
+			    SQ_CTXT_PREF_SET(SQ_WQ_PREFETCH_MAX, CACHE_MAX) |
+			    SQ_CTXT_PREF_SET(SQ_WQ_PREFETCH_THRESHOLD, CACHE_THRESHOLD));
+
+	sq_ctxt->pref_ci_owner =
+		cpu_to_le32(SQ_CTXT_PREF_SET(SQ_CTXT_PREF_CI_HI(ci_start), CI_HI) |
+			    SQ_CTXT_PREF_SET(1, OWNER));
+
+	sq_ctxt->pref_wq_pfn_hi_ci =
+		cpu_to_le32(SQ_CTXT_PREF_SET(ci_start, CI_LOW) |
+			    SQ_CTXT_PREF_SET(wq_page_pfn_hi, WQ_PFN_HI));
+
+	sq_ctxt->pref_wq_pfn_lo = cpu_to_le32(wq_page_pfn_lo);
+
+	sq_ctxt->wq_block_pfn_hi =
+		cpu_to_le32(SQ_CTXT_WQ_BLOCK_SET(wq_block_pfn_hi, PFN_HI));
+
+	sq_ctxt->wq_block_pfn_lo = cpu_to_le32(wq_block_pfn_lo);
+}
+
+static void hinic3_rq_prepare_ctxt_get_wq_info(struct hinic3_io_queue *rq,
+					       u32 *wq_page_pfn_hi,
+					       u32 *wq_page_pfn_lo,
+					       u32 *wq_block_pfn_hi,
+					       u32 *wq_block_pfn_lo)
+{
+	u64 wq_page_addr, wq_page_pfn, wq_block_pfn;
+
+	wq_page_addr = hinic3_wq_get_first_wqe_page_addr(&rq->wq);
+
+	wq_page_pfn = WQ_PAGE_PFN(wq_page_addr);
+	*wq_page_pfn_hi = upper_32_bits(wq_page_pfn);
+	*wq_page_pfn_lo = lower_32_bits(wq_page_pfn);
+
+	wq_block_pfn = WQ_BLOCK_PFN(rq->wq.wq_block_paddr);
+	*wq_block_pfn_hi = upper_32_bits(wq_block_pfn);
+	*wq_block_pfn_lo = lower_32_bits(wq_block_pfn);
+}
+
+static void hinic3_rq_prepare_ctxt(struct hinic3_io_queue *rq,
+				   struct hinic3_rq_ctxt *rq_ctxt)
+{
+	u32 wq_block_pfn_hi, wq_block_pfn_lo;
+	u32 wq_page_pfn_hi, wq_page_pfn_lo;
+	u16 pi_start, ci_start;
+
+	ci_start = (rq->wq.cons_idx & rq->wq.idx_mask) << HINIC3_NORMAL_RQ_WQE;
+	pi_start = (rq->wq.prod_idx & rq->wq.idx_mask) << HINIC3_NORMAL_RQ_WQE;
+
+	hinic3_rq_prepare_ctxt_get_wq_info(rq, &wq_page_pfn_hi, &wq_page_pfn_lo,
+					   &wq_block_pfn_hi, &wq_block_pfn_lo);
+
+	rq_ctxt->ci_pi =
+		cpu_to_le32(RQ_CTXT_CI_PI_SET(ci_start, CI_IDX) |
+			    RQ_CTXT_CI_PI_SET(pi_start, PI_IDX));
+
+	rq_ctxt->ceq_attr =
+		cpu_to_le32(RQ_CTXT_CEQ_ATTR_SET(0, EN) |
+			    RQ_CTXT_CEQ_ATTR_SET(rq->msix_entry_idx, INTR));
+
+	rq_ctxt->wq_pfn_hi_type_owner =
+		cpu_to_le32(RQ_CTXT_WQ_PAGE_SET(wq_page_pfn_hi, HI_PFN) |
+			    RQ_CTXT_WQ_PAGE_SET(1, OWNER));
+
+	/* use 16Byte WQE */
+	rq_ctxt->wq_pfn_hi_type_owner |=
+		cpu_to_le32(RQ_CTXT_WQ_PAGE_SET(2, WQE_TYPE));
+	rq_ctxt->cqe_sge_len = cpu_to_le32(RQ_CTXT_CQE_LEN_SET(1, CQE_LEN));
+
+	rq_ctxt->wq_pfn_lo = cpu_to_le32(wq_page_pfn_lo);
+
+	rq_ctxt->pref_cache =
+		cpu_to_le32(RQ_CTXT_PREF_SET(RQ_WQ_PREFETCH_MIN, CACHE_MIN) |
+			    RQ_CTXT_PREF_SET(RQ_WQ_PREFETCH_MAX, CACHE_MAX) |
+			    RQ_CTXT_PREF_SET(RQ_WQ_PREFETCH_THRESHOLD, CACHE_THRESHOLD));
+
+	rq_ctxt->pref_ci_owner =
+		cpu_to_le32(RQ_CTXT_PREF_SET(RQ_CTXT_PREF_CI_HI(ci_start),
+					     CI_HI) |
+			    RQ_CTXT_PREF_SET(1, OWNER));
+
+	rq_ctxt->pref_wq_pfn_hi_ci =
+		cpu_to_le32(RQ_CTXT_PREF_SET(wq_page_pfn_hi, WQ_PFN_HI) |
+			    RQ_CTXT_PREF_SET(ci_start, CI_LOW));
+
+	rq_ctxt->pref_wq_pfn_lo = cpu_to_le32(wq_page_pfn_lo);
+
+	rq_ctxt->wq_block_pfn_hi =
+		cpu_to_le32(RQ_CTXT_WQ_BLOCK_SET(wq_block_pfn_hi, PFN_HI));
+
+	rq_ctxt->wq_block_pfn_lo = cpu_to_le32(wq_block_pfn_lo);
+}
+
+static int init_sq_ctxts(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	struct hinic3_sq_ctxt_block *sq_ctxt_block;
+	u16 q_id, curr_id, max_ctxts, i;
+	struct hinic3_sq_ctxt *sq_ctxt;
+	struct hinic3_cmd_buf *cmd_buf;
+	struct hinic3_io_queue *sq;
+	__le64 out_param;
+	int err = 0;
+
+	cmd_buf = hinic3_alloc_cmd_buf(hwdev);
+	if (!cmd_buf) {
+		dev_err(hwdev->dev, "Failed to allocate cmd buf\n");
+		return -ENOMEM;
+	}
+
+	q_id = 0;
+	while (q_id < nic_io->num_qps) {
+		sq_ctxt_block = cmd_buf->buf;
+		sq_ctxt = sq_ctxt_block->sq_ctxt;
+
+		max_ctxts = (nic_io->num_qps - q_id) > HINIC3_Q_CTXT_MAX ?
+			     HINIC3_Q_CTXT_MAX : (nic_io->num_qps - q_id);
+
+		hinic3_qp_prepare_cmdq_header(&sq_ctxt_block->cmdq_hdr,
+					      HINIC3_QP_CTXT_TYPE_SQ, max_ctxts,
+					      q_id);
+
+		for (i = 0; i < max_ctxts; i++) {
+			curr_id = q_id + i;
+			sq = &nic_io->sq[curr_id];
+			hinic3_sq_prepare_ctxt(sq, curr_id, &sq_ctxt[i]);
+		}
+
+		hinic3_cmdq_buf_swab32(sq_ctxt_block, sizeof(*sq_ctxt_block));
+
+		cmd_buf->size = cpu_to_le16(SQ_CTXT_SIZE(max_ctxts));
+		err = hinic3_cmdq_direct_resp(hwdev, MGMT_MOD_L2NIC,
+					      L2NIC_UCODE_CMD_MODIFY_QUEUE_CTX,
+					      cmd_buf, &out_param);
+		if (err || out_param) {
+			dev_err(hwdev->dev, "Failed to set SQ ctxts, err: %d, out_param: 0x%llx\n",
+				err, out_param);
+			err = -EFAULT;
+			break;
+		}
+
+		q_id += max_ctxts;
+	}
+
+	hinic3_free_cmd_buf(hwdev, cmd_buf);
+
+	return err;
+}
+
+static int init_rq_ctxts(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	struct hinic3_rq_ctxt_block *rq_ctxt_block;
+	u16 q_id, curr_id, max_ctxts, i;
+	struct hinic3_rq_ctxt *rq_ctxt;
+	struct hinic3_cmd_buf *cmd_buf;
+	struct hinic3_io_queue *rq;
+	__le64 out_param;
+	int err = 0;
+
+	cmd_buf = hinic3_alloc_cmd_buf(hwdev);
+	if (!cmd_buf) {
+		dev_err(hwdev->dev, "Failed to allocate cmd buf\n");
+		return -ENOMEM;
+	}
+
+	q_id = 0;
+	while (q_id < nic_io->num_qps) {
+		rq_ctxt_block = cmd_buf->buf;
+		rq_ctxt = rq_ctxt_block->rq_ctxt;
+
+		max_ctxts = (nic_io->num_qps - q_id) > HINIC3_Q_CTXT_MAX ?
+				HINIC3_Q_CTXT_MAX : (nic_io->num_qps - q_id);
+
+		hinic3_qp_prepare_cmdq_header(&rq_ctxt_block->cmdq_hdr,
+					      HINIC3_QP_CTXT_TYPE_RQ, max_ctxts,
+					      q_id);
+
+		for (i = 0; i < max_ctxts; i++) {
+			curr_id = q_id + i;
+			rq = &nic_io->rq[curr_id];
+			hinic3_rq_prepare_ctxt(rq, &rq_ctxt[i]);
+		}
+
+		hinic3_cmdq_buf_swab32(rq_ctxt_block, sizeof(*rq_ctxt_block));
+
+		cmd_buf->size = cpu_to_le16(RQ_CTXT_SIZE(max_ctxts));
+
+		err = hinic3_cmdq_direct_resp(hwdev, MGMT_MOD_L2NIC,
+					      L2NIC_UCODE_CMD_MODIFY_QUEUE_CTX,
+					      cmd_buf, &out_param);
+		if (err || out_param) {
+			dev_err(hwdev->dev, "Failed to set RQ ctxts, err: %d, out_param: 0x%llx\n",
+				err, out_param);
+			err = -EFAULT;
+			break;
+		}
+
+		q_id += max_ctxts;
+	}
+
+	hinic3_free_cmd_buf(hwdev, cmd_buf);
+
+	return err;
+}
+
+static int init_qp_ctxts(struct hinic3_nic_dev *nic_dev)
+{
+	int err;
+
+	err = init_sq_ctxts(nic_dev);
+	if (err)
+		return err;
+
+	err = init_rq_ctxts(nic_dev);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int clean_queue_offload_ctxt(struct hinic3_nic_dev *nic_dev,
+				    enum hinic3_qp_ctxt_type ctxt_type)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	struct hinic3_clean_queue_ctxt *ctxt_block;
+	struct hinic3_cmd_buf *cmd_buf;
+	__le64 out_param;
+	int err;
+
+	cmd_buf = hinic3_alloc_cmd_buf(hwdev);
+	if (!cmd_buf) {
+		dev_err(hwdev->dev, "Failed to allocate cmd buf\n");
+		return -ENOMEM;
+	}
+
+	ctxt_block = cmd_buf->buf;
+	ctxt_block->cmdq_hdr.num_queues = cpu_to_le16(nic_io->max_qps);
+	ctxt_block->cmdq_hdr.queue_type = cpu_to_le16(ctxt_type);
+	ctxt_block->cmdq_hdr.start_qid = 0;
+	ctxt_block->cmdq_hdr.rsvd = 0;
+	ctxt_block->rsvd = 0;
+
+	hinic3_cmdq_buf_swab32(ctxt_block, sizeof(*ctxt_block));
+
+	cmd_buf->size = cpu_to_le16(sizeof(*ctxt_block));
+
+	err = hinic3_cmdq_direct_resp(hwdev, MGMT_MOD_L2NIC,
+				      L2NIC_UCODE_CMD_CLEAN_QUEUE_CTX,
+				      cmd_buf, &out_param);
+	if (err || out_param) {
+		dev_err(hwdev->dev, "Failed to clean queue offload ctxts, err: %d,out_param: 0x%llx\n",
+			err, out_param);
+
+		err = -EFAULT;
+	}
+
+	hinic3_free_cmd_buf(hwdev, cmd_buf);
+
+	return err;
+}
+
+static int clean_qp_offload_ctxt(struct hinic3_nic_dev *nic_dev)
+{
+	/* clean LRO/TSO context space */
+	return clean_queue_offload_ctxt(nic_dev, HINIC3_QP_CTXT_TYPE_SQ) ||
+	       clean_queue_offload_ctxt(nic_dev, HINIC3_QP_CTXT_TYPE_RQ);
+}
+
+/* init qps ctxt and set sq ci attr and arm all sq */
+int hinic3_init_qp_ctxts(struct hinic3_nic_dev *nic_dev)
+{
+	struct hinic3_nic_io *nic_io = nic_dev->nic_io;
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	struct hinic3_sq_attr sq_attr;
+	u32 rq_depth;
+	u16 q_id;
+	int err;
+
+	err = init_qp_ctxts(nic_dev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to init QP ctxts\n");
+		return err;
+	}
+
+	/* clean LRO/TSO context space */
+	err = clean_qp_offload_ctxt(nic_dev);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to clean qp offload ctxts\n");
+		return err;
+	}
+
+	rq_depth = nic_io->rq[0].wq.q_depth << HINIC3_NORMAL_RQ_WQE;
+
+	err = hinic3_set_root_ctxt(hwdev, rq_depth, nic_io->sq[0].wq.q_depth,
+				   nic_io->rx_buf_len);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set root context\n");
+		return err;
+	}
+
+	for (q_id = 0; q_id < nic_io->num_qps; q_id++) {
+		sq_attr.ci_dma_base =
+			HINIC3_CI_PADDR(nic_io->ci_dma_base, q_id) >> 0x2;
+		sq_attr.pending_limit = HINIC3_DEFAULT_TX_CI_PENDING_LIMIT;
+		sq_attr.coalescing_time = HINIC3_DEFAULT_TX_CI_COALESCING_TIME;
+		sq_attr.intr_en = 1;
+		sq_attr.intr_idx = nic_io->sq[q_id].msix_entry_idx;
+		sq_attr.l2nic_sqn = q_id;
+		sq_attr.dma_attr_off = 0;
+		err = hinic3_set_ci_table(hwdev, &sq_attr);
+		if (err) {
+			dev_err(hwdev->dev, "Failed to set ci table\n");
+			goto err_clean_root_ctxt;
+		}
+	}
+
+	return 0;
+
+err_clean_root_ctxt:
+	hinic3_clean_root_ctxt(hwdev);
+
+	return err;
+}
+
+void hinic3_free_qp_ctxts(struct hinic3_nic_dev *nic_dev)
+{
+	hinic3_clean_root_ctxt(nic_dev->hwdev);
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_nic_io.h

@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_NIC_IO_H_
+#define _HINIC3_NIC_IO_H_
+
+#include <linux/bitfield.h>
+
+#include "hinic3_wq.h"
+
+struct hinic3_nic_dev;
+
+#define HINIC3_SQ_WQEBB_SHIFT      4
+#define HINIC3_RQ_WQEBB_SHIFT      3
+#define HINIC3_SQ_WQEBB_SIZE       BIT(HINIC3_SQ_WQEBB_SHIFT)
+
+/* ******************** RQ_CTRL ******************** */
+enum hinic3_rq_wqe_type {
+	HINIC3_NORMAL_RQ_WQE = 1,
+};
+
+/* ******************** SQ_CTRL ******************** */
+#define HINIC3_TX_MSS_DEFAULT  0x3E00
+#define HINIC3_TX_MSS_MIN      0x50
+#define HINIC3_MAX_SQ_SGE      18
+
+struct hinic3_io_queue {
+	struct hinic3_wq  wq;
+	u8                owner;
+	u16               q_id;
+	u16               msix_entry_idx;
+	u8 __iomem        *db_addr;
+	u16               *cons_idx_addr;
+} ____cacheline_aligned;
+
+static inline u16 hinic3_get_sq_local_ci(const struct hinic3_io_queue *sq)
+{
+	const struct hinic3_wq *wq = &sq->wq;
+
+	return wq->cons_idx & wq->idx_mask;
+}
+
+static inline u16 hinic3_get_sq_local_pi(const struct hinic3_io_queue *sq)
+{
+	const struct hinic3_wq *wq = &sq->wq;
+
+	return wq->prod_idx & wq->idx_mask;
+}
+
+static inline u16 hinic3_get_sq_hw_ci(const struct hinic3_io_queue *sq)
+{
+	const struct hinic3_wq *wq = &sq->wq;
+
+	return READ_ONCE(*sq->cons_idx_addr) & wq->idx_mask;
+}
+
+/* ******************** DB INFO ******************** */
+#define DB_INFO_QID_MASK    GENMASK(12, 0)
+#define DB_INFO_CFLAG_MASK  BIT(23)
+#define DB_INFO_COS_MASK    GENMASK(26, 24)
+#define DB_INFO_TYPE_MASK   GENMASK(31, 27)
+#define DB_INFO_SET(val, member)  \
+	FIELD_PREP(DB_INFO_##member##_MASK, val)
+
+#define DB_PI_LOW_MASK   0xFFU
+#define DB_PI_HIGH_MASK  0xFFU
+#define DB_PI_HI_SHIFT   8
+#define DB_PI_LOW(pi)    ((pi) & DB_PI_LOW_MASK)
+#define DB_PI_HIGH(pi)   (((pi) >> DB_PI_HI_SHIFT) & DB_PI_HIGH_MASK)
+#define DB_ADDR(q, pi)   ((u64 __iomem *)((q)->db_addr) + DB_PI_LOW(pi))
+#define DB_SRC_TYPE      1
+
+/* CFLAG_DATA_PATH */
+#define DB_CFLAG_DP_SQ   0
+#define DB_CFLAG_DP_RQ   1
+
+struct hinic3_nic_db {
+	__le32 db_info;
+	__le32 pi_hi;
+};
+
+static inline void hinic3_write_db(struct hinic3_io_queue *queue, int cos,
+				   u8 cflag, u16 pi)
+{
+	struct hinic3_nic_db db;
+
+	db.db_info =
+		cpu_to_le32(DB_INFO_SET(DB_SRC_TYPE, TYPE) |
+			    DB_INFO_SET(cflag, CFLAG) |
+			    DB_INFO_SET(cos, COS) |
+			    DB_INFO_SET(queue->q_id, QID));
+	db.pi_hi = cpu_to_le32(DB_PI_HIGH(pi));
+
+	writeq(*((u64 *)&db), DB_ADDR(queue, pi));
+}
+
+struct hinic3_dyna_qp_params {
+	u16                    num_qps;
+	u32                    sq_depth;
+	u32                    rq_depth;
+
+	struct hinic3_io_queue *sqs;
+	struct hinic3_io_queue *rqs;
+};
+
+struct hinic3_nic_io {
+	struct hinic3_io_queue *sq;
+	struct hinic3_io_queue *rq;
+
+	u16                    num_qps;
+	u16                    max_qps;
+
+	/* Base address for consumer index of all tx queues. Each queue is
+	 * given a full cache line to hold its consumer index. HW updates
+	 * current consumer index as it consumes tx WQEs.
+	 */
+	void                   *ci_vaddr_base;
+	dma_addr_t             ci_dma_base;
+
+	u8 __iomem             *sqs_db_addr;
+	u8 __iomem             *rqs_db_addr;
+
+	u16                    rx_buf_len;
+	u64                    feature_cap;
+};
+
+int hinic3_init_nic_io(struct hinic3_nic_dev *nic_dev);
+void hinic3_free_nic_io(struct hinic3_nic_dev *nic_dev);
+
+int hinic3_init_nicio_res(struct hinic3_nic_dev *nic_dev);
+void hinic3_free_nicio_res(struct hinic3_nic_dev *nic_dev);
+
+int hinic3_alloc_qps(struct hinic3_nic_dev *nic_dev,
+		     struct hinic3_dyna_qp_params *qp_params);
+void hinic3_free_qps(struct hinic3_nic_dev *nic_dev,
+		     struct hinic3_dyna_qp_params *qp_params);
+void hinic3_init_qps(struct hinic3_nic_dev *nic_dev,
+		     struct hinic3_dyna_qp_params *qp_params);
+void hinic3_uninit_qps(struct hinic3_nic_dev *nic_dev,
+		       struct hinic3_dyna_qp_params *qp_params);
+
+int hinic3_init_qp_ctxts(struct hinic3_nic_dev *nic_dev);
+void hinic3_free_qp_ctxts(struct hinic3_nic_dev *nic_dev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_pci_id_tbl.h

@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_PCI_ID_TBL_H_
+#define _HINIC3_PCI_ID_TBL_H_
+
+#define PCI_DEV_ID_HINIC3_PF    0x0222
+#define PCI_DEV_ID_HINIC3_VF    0x375F
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_queue_common.c

@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/device.h>
+
+#include "hinic3_hwdev.h"
+#include "hinic3_queue_common.h"
+
+void hinic3_queue_pages_init(struct hinic3_queue_pages *qpages, u32 q_depth,
+			     u32 page_size, u32 elem_size)
+{
+	u32 elem_per_page;
+
+	elem_per_page = min(page_size / elem_size, q_depth);
+
+	qpages->pages = NULL;
+	qpages->page_size = page_size;
+	qpages->num_pages = max(q_depth / elem_per_page, 1);
+	qpages->elem_size_shift = ilog2(elem_size);
+	qpages->elem_per_pg_shift = ilog2(elem_per_page);
+}
+
+static void __queue_pages_free(struct hinic3_hwdev *hwdev,
+			       struct hinic3_queue_pages *qpages, u32 pg_cnt)
+{
+	while (pg_cnt > 0) {
+		pg_cnt--;
+		hinic3_dma_free_coherent_align(hwdev->dev,
+					       qpages->pages + pg_cnt);
+	}
+	kfree(qpages->pages);
+	qpages->pages = NULL;
+}
+
+void hinic3_queue_pages_free(struct hinic3_hwdev *hwdev,
+			     struct hinic3_queue_pages *qpages)
+{
+	__queue_pages_free(hwdev, qpages, qpages->num_pages);
+}
+
+int hinic3_queue_pages_alloc(struct hinic3_hwdev *hwdev,
+			     struct hinic3_queue_pages *qpages, u32 align)
+{
+	u32 pg_idx;
+	int err;
+
+	qpages->pages = kzalloc_objs(qpages->pages[0], qpages->num_pages);
+	if (!qpages->pages)
+		return -ENOMEM;
+
+	if (align == 0)
+		align = qpages->page_size;
+
+	for (pg_idx = 0; pg_idx < qpages->num_pages; pg_idx++) {
+		err = hinic3_dma_zalloc_coherent_align(hwdev->dev,
+						       qpages->page_size,
+						       align,
+						       GFP_KERNEL,
+						       qpages->pages + pg_idx);
+		if (err) {
+			__queue_pages_free(hwdev, qpages, pg_idx);
+			return err;
+		}
+	}
+
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_queue_common.h

@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_QUEUE_COMMON_H_
+#define _HINIC3_QUEUE_COMMON_H_
+
+#include <linux/types.h>
+
+#include "hinic3_common.h"
+
+struct hinic3_hwdev;
+
+struct hinic3_queue_pages {
+	/* Array of DMA-able pages that actually holds the queue entries. */
+	struct hinic3_dma_addr_align  *pages;
+	/* Page size in bytes. */
+	u32                           page_size;
+	/* Number of pages, must be power of 2. */
+	u16                           num_pages;
+	u8                            elem_size_shift;
+	u8                            elem_per_pg_shift;
+};
+
+void hinic3_queue_pages_init(struct hinic3_queue_pages *qpages, u32 q_depth,
+			     u32 page_size, u32 elem_size);
+int hinic3_queue_pages_alloc(struct hinic3_hwdev *hwdev,
+			     struct hinic3_queue_pages *qpages, u32 align);
+void hinic3_queue_pages_free(struct hinic3_hwdev *hwdev,
+			     struct hinic3_queue_pages *qpages);
+
+/* Get pointer to queue entry at the specified index. Index does not have to be
+ * masked to queue depth, only least significant bits will be used. Also
+ * provides remaining elements in same page (including the first one) in case
+ * caller needs multiple entries.
+ */
+static inline void *get_q_element(const struct hinic3_queue_pages *qpages,
+				  u32 idx, u32 *remaining_in_page)
+{
+	const struct hinic3_dma_addr_align *page;
+	u32 page_idx, elem_idx, elem_per_pg, ofs;
+	u8 shift;
+
+	shift = qpages->elem_per_pg_shift;
+	page_idx = (idx >> shift) & (qpages->num_pages - 1);
+	elem_per_pg = 1 << shift;
+	elem_idx = idx & (elem_per_pg - 1);
+	if (remaining_in_page)
+		*remaining_in_page = elem_per_pg - elem_idx;
+	ofs = elem_idx << qpages->elem_size_shift;
+	page = qpages->pages + page_idx;
+	return (char *)page->align_vaddr + ofs;
+}
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_rss.c

@@ -0,0 +1,336 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/ethtool.h>
+
+#include "hinic3_cmdq.h"
+#include "hinic3_hwdev.h"
+#include "hinic3_hwif.h"
+#include "hinic3_mbox.h"
+#include "hinic3_nic_cfg.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_rss.h"
+
+static void hinic3_fillout_indir_tbl(struct net_device *netdev, u16 *indir)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 i, num_qps;
+
+	num_qps = nic_dev->q_params.num_qps;
+	for (i = 0; i < L2NIC_RSS_INDIR_SIZE; i++)
+		indir[i] = ethtool_rxfh_indir_default(i, num_qps);
+}
+
+static int hinic3_rss_cfg(struct hinic3_hwdev *hwdev, u8 rss_en, u16 num_qps)
+{
+	struct mgmt_msg_params msg_params = {};
+	struct l2nic_cmd_cfg_rss rss_cfg = {};
+	int err;
+
+	rss_cfg.func_id = hinic3_global_func_id(hwdev);
+	rss_cfg.rss_en = rss_en;
+	rss_cfg.rq_priority_number = 0;
+	rss_cfg.num_qps = num_qps;
+
+	mgmt_msg_params_init_default(&msg_params, &rss_cfg, sizeof(rss_cfg));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_RSS, &msg_params);
+	if (err || rss_cfg.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to set rss cfg, err: %d, status: 0x%x\n",
+			err, rss_cfg.msg_head.status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void hinic3_init_rss_parameters(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	nic_dev->rss_hash_type = HINIC3_RSS_HASH_ENGINE_TYPE_XOR;
+	nic_dev->rss_type.tcp_ipv6_ext = 1;
+	nic_dev->rss_type.ipv6_ext = 1;
+	nic_dev->rss_type.tcp_ipv6 = 1;
+	nic_dev->rss_type.ipv6 = 1;
+	nic_dev->rss_type.tcp_ipv4 = 1;
+	nic_dev->rss_type.ipv4 = 1;
+	nic_dev->rss_type.udp_ipv6 = 1;
+	nic_dev->rss_type.udp_ipv4 = 1;
+}
+
+static void decide_num_qps(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	unsigned int dev_cpus;
+
+	dev_cpus = netif_get_num_default_rss_queues();
+	nic_dev->q_params.num_qps = min(dev_cpus, nic_dev->max_qps);
+}
+
+static int alloc_rss_resource(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	nic_dev->rss_hkey = kmalloc_array(L2NIC_RSS_KEY_SIZE,
+					  sizeof(nic_dev->rss_hkey[0]),
+					  GFP_KERNEL);
+	if (!nic_dev->rss_hkey)
+		return -ENOMEM;
+
+	netdev_rss_key_fill(nic_dev->rss_hkey, L2NIC_RSS_KEY_SIZE);
+
+	nic_dev->rss_indir = kcalloc(L2NIC_RSS_INDIR_SIZE, sizeof(u16),
+				     GFP_KERNEL);
+	if (!nic_dev->rss_indir) {
+		kfree(nic_dev->rss_hkey);
+		nic_dev->rss_hkey = NULL;
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static int hinic3_rss_set_indir_tbl(struct hinic3_hwdev *hwdev,
+				    const u16 *indir_table)
+{
+	struct l2nic_cmd_rss_set_indir_tbl *indir_tbl;
+	struct hinic3_cmd_buf *cmd_buf;
+	__le64 out_param;
+	int err;
+	u32 i;
+
+	cmd_buf = hinic3_alloc_cmd_buf(hwdev);
+	if (!cmd_buf) {
+		dev_err(hwdev->dev, "Failed to allocate cmd buf\n");
+		return -ENOMEM;
+	}
+
+	cmd_buf->size = cpu_to_le16(sizeof(struct l2nic_cmd_rss_set_indir_tbl));
+	indir_tbl = cmd_buf->buf;
+	memset(indir_tbl, 0, sizeof(*indir_tbl));
+
+	for (i = 0; i < L2NIC_RSS_INDIR_SIZE; i++)
+		indir_tbl->entry[i] = cpu_to_le16(indir_table[i]);
+
+	hinic3_cmdq_buf_swab32(indir_tbl, sizeof(*indir_tbl));
+
+	err = hinic3_cmdq_direct_resp(hwdev, MGMT_MOD_L2NIC,
+				      L2NIC_UCODE_CMD_SET_RSS_INDIR_TBL,
+				      cmd_buf, &out_param);
+	if (err || out_param) {
+		dev_err(hwdev->dev, "Failed to set rss indir table\n");
+		err = -EFAULT;
+	}
+
+	hinic3_free_cmd_buf(hwdev, cmd_buf);
+
+	return err;
+}
+
+static int hinic3_set_rss_type(struct hinic3_hwdev *hwdev,
+			       struct hinic3_rss_type rss_type)
+{
+	struct l2nic_cmd_rss_ctx_tbl ctx_tbl = {};
+	struct mgmt_msg_params msg_params = {};
+	u32 ctx;
+	int err;
+
+	ctx_tbl.func_id = hinic3_global_func_id(hwdev);
+	ctx = L2NIC_RSS_TYPE_SET(1, VALID) |
+	      L2NIC_RSS_TYPE_SET(rss_type.ipv4, IPV4) |
+	      L2NIC_RSS_TYPE_SET(rss_type.ipv6, IPV6) |
+	      L2NIC_RSS_TYPE_SET(rss_type.ipv6_ext, IPV6_EXT) |
+	      L2NIC_RSS_TYPE_SET(rss_type.tcp_ipv4, TCP_IPV4) |
+	      L2NIC_RSS_TYPE_SET(rss_type.tcp_ipv6, TCP_IPV6) |
+	      L2NIC_RSS_TYPE_SET(rss_type.tcp_ipv6_ext, TCP_IPV6_EXT) |
+	      L2NIC_RSS_TYPE_SET(rss_type.udp_ipv4, UDP_IPV4) |
+	      L2NIC_RSS_TYPE_SET(rss_type.udp_ipv6, UDP_IPV6);
+	ctx_tbl.context = ctx;
+
+	mgmt_msg_params_init_default(&msg_params, &ctx_tbl, sizeof(ctx_tbl));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_SET_RSS_CTX_TBL, &msg_params);
+
+	if (ctx_tbl.msg_head.status == MGMT_STATUS_CMD_UNSUPPORTED) {
+		return MGMT_STATUS_CMD_UNSUPPORTED;
+	} else if (err || ctx_tbl.msg_head.status) {
+		dev_err(hwdev->dev, "mgmt Failed to set rss context offload, err: %d, status: 0x%x\n",
+			err, ctx_tbl.msg_head.status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int hinic3_rss_cfg_hash_type(struct hinic3_hwdev *hwdev, u8 opcode,
+				    enum hinic3_rss_hash_type *type)
+{
+	struct l2nic_cmd_cfg_rss_engine hash_type_cmd = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	hash_type_cmd.func_id = hinic3_global_func_id(hwdev);
+	hash_type_cmd.opcode = opcode;
+
+	if (opcode == MGMT_MSG_CMD_OP_SET)
+		hash_type_cmd.hash_engine = *type;
+
+	mgmt_msg_params_init_default(&msg_params, &hash_type_cmd,
+				     sizeof(hash_type_cmd));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_RSS_HASH_ENGINE,
+				       &msg_params);
+	if (err || hash_type_cmd.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to %s hash engine, err: %d, status: 0x%x\n",
+			opcode == MGMT_MSG_CMD_OP_SET ? "set" : "get",
+			err, hash_type_cmd.msg_head.status);
+		return -EIO;
+	}
+
+	if (opcode == MGMT_MSG_CMD_OP_GET)
+		*type = hash_type_cmd.hash_engine;
+
+	return 0;
+}
+
+static int hinic3_rss_set_hash_type(struct hinic3_hwdev *hwdev,
+				    enum hinic3_rss_hash_type type)
+{
+	return hinic3_rss_cfg_hash_type(hwdev, MGMT_MSG_CMD_OP_SET, &type);
+}
+
+static int hinic3_config_rss_hw_resource(struct net_device *netdev,
+					 u16 *indir_tbl)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int err;
+
+	err = hinic3_rss_set_indir_tbl(nic_dev->hwdev, indir_tbl);
+	if (err)
+		return err;
+
+	err = hinic3_set_rss_type(nic_dev->hwdev, nic_dev->rss_type);
+	if (err)
+		return err;
+
+	return hinic3_rss_set_hash_type(nic_dev->hwdev, nic_dev->rss_hash_type);
+}
+
+static int hinic3_rss_cfg_hash_key(struct hinic3_hwdev *hwdev, u8 opcode,
+				   u8 *key)
+{
+	struct l2nic_cmd_cfg_rss_hash_key hash_key = {};
+	struct mgmt_msg_params msg_params = {};
+	int err;
+
+	hash_key.func_id = hinic3_global_func_id(hwdev);
+	hash_key.opcode = opcode;
+
+	if (opcode == MGMT_MSG_CMD_OP_SET)
+		memcpy(hash_key.key, key, L2NIC_RSS_KEY_SIZE);
+
+	mgmt_msg_params_init_default(&msg_params, &hash_key, sizeof(hash_key));
+
+	err = hinic3_send_mbox_to_mgmt(hwdev, MGMT_MOD_L2NIC,
+				       L2NIC_CMD_CFG_RSS_HASH_KEY, &msg_params);
+	if (err || hash_key.msg_head.status) {
+		dev_err(hwdev->dev, "Failed to %s hash key, err: %d, status: 0x%x\n",
+			opcode == MGMT_MSG_CMD_OP_SET ? "set" : "get",
+			err, hash_key.msg_head.status);
+		return -EINVAL;
+	}
+
+	if (opcode == MGMT_MSG_CMD_OP_GET)
+		memcpy(key, hash_key.key, L2NIC_RSS_KEY_SIZE);
+
+	return 0;
+}
+
+static int hinic3_rss_set_hash_key(struct hinic3_hwdev *hwdev, u8 *key)
+{
+	return hinic3_rss_cfg_hash_key(hwdev, MGMT_MSG_CMD_OP_SET, key);
+}
+
+static int hinic3_set_hw_rss_parameters(struct net_device *netdev, u8 rss_en)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	int err;
+
+	err = hinic3_rss_set_hash_key(nic_dev->hwdev, nic_dev->rss_hkey);
+	if (err)
+		return err;
+
+	hinic3_fillout_indir_tbl(netdev, nic_dev->rss_indir);
+
+	err = hinic3_config_rss_hw_resource(netdev, nic_dev->rss_indir);
+	if (err)
+		return err;
+
+	err = hinic3_rss_cfg(nic_dev->hwdev, rss_en, nic_dev->q_params.num_qps);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int hinic3_rss_init(struct net_device *netdev)
+{
+	return hinic3_set_hw_rss_parameters(netdev, 1);
+}
+
+void hinic3_rss_uninit(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	hinic3_rss_cfg(nic_dev->hwdev, 0, 0);
+}
+
+void hinic3_clear_rss_config(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	kfree(nic_dev->rss_hkey);
+	nic_dev->rss_hkey = NULL;
+
+	kfree(nic_dev->rss_indir);
+	nic_dev->rss_indir = NULL;
+}
+
+void hinic3_try_to_enable_rss(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_hwdev *hwdev = nic_dev->hwdev;
+	int err;
+
+	nic_dev->max_qps = hinic3_func_max_qnum(hwdev);
+	if (nic_dev->max_qps <= 1 ||
+	    !hinic3_test_support(nic_dev, HINIC3_NIC_F_RSS))
+		goto err_reset_q_params;
+
+	err = alloc_rss_resource(netdev);
+	if (err) {
+		nic_dev->max_qps = 1;
+		goto err_reset_q_params;
+	}
+
+	set_bit(HINIC3_RSS_ENABLE, &nic_dev->flags);
+	decide_num_qps(netdev);
+	hinic3_init_rss_parameters(netdev);
+	err = hinic3_set_hw_rss_parameters(netdev, 0);
+	if (err) {
+		dev_err(hwdev->dev, "Failed to set hardware rss parameters\n");
+		hinic3_clear_rss_config(netdev);
+		nic_dev->max_qps = 1;
+		goto err_reset_q_params;
+	}
+
+	return;
+
+err_reset_q_params:
+	clear_bit(HINIC3_RSS_ENABLE, &nic_dev->flags);
+	nic_dev->q_params.num_qps = nic_dev->max_qps;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_rss.h

@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_RSS_H_
+#define _HINIC3_RSS_H_
+
+#include <linux/netdevice.h>
+
+int hinic3_rss_init(struct net_device *netdev);
+void hinic3_rss_uninit(struct net_device *netdev);
+void hinic3_try_to_enable_rss(struct net_device *netdev);
+void hinic3_clear_rss_config(struct net_device *netdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_rx.c

@@ -0,0 +1,592 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/netdevice.h>
+#include <net/gro.h>
+#include <net/page_pool/helpers.h>
+
+#include "hinic3_hwdev.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_io.h"
+#include "hinic3_rx.h"
+
+#define HINIC3_RX_HDR_SIZE              256
+#define HINIC3_RX_BUFFER_WRITE          16
+
+#define HINIC3_RX_TCP_PKT               0x3
+#define HINIC3_RX_UDP_PKT               0x4
+#define HINIC3_RX_SCTP_PKT              0x7
+
+#define HINIC3_RX_IPV4_PKT              0
+#define HINIC3_RX_IPV6_PKT              1
+#define HINIC3_RX_INVALID_IP_TYPE       2
+
+#define HINIC3_RX_PKT_FORMAT_NON_TUNNEL 0
+#define HINIC3_RX_PKT_FORMAT_VXLAN      1
+
+#define HINIC3_LRO_PKT_HDR_LEN_IPV4     66
+#define HINIC3_LRO_PKT_HDR_LEN_IPV6     86
+#define HINIC3_LRO_PKT_HDR_LEN(cqe) \
+	(RQ_CQE_OFFOLAD_TYPE_GET((cqe)->offload_type, IP_TYPE) == \
+	 HINIC3_RX_IPV6_PKT ? HINIC3_LRO_PKT_HDR_LEN_IPV6 : \
+	 HINIC3_LRO_PKT_HDR_LEN_IPV4)
+
+static void hinic3_rxq_clean_stats(struct hinic3_rxq_stats *rxq_stats)
+{
+	u64_stats_update_begin(&rxq_stats->syncp);
+	rxq_stats->bytes = 0;
+	rxq_stats->packets = 0;
+	rxq_stats->errors = 0;
+	rxq_stats->csum_errors = 0;
+	rxq_stats->other_errors = 0;
+	rxq_stats->dropped = 0;
+	rxq_stats->rx_buf_empty = 0;
+
+	rxq_stats->alloc_skb_err = 0;
+	rxq_stats->alloc_rx_buf_err = 0;
+	rxq_stats->restore_drop_sge = 0;
+	u64_stats_update_end(&rxq_stats->syncp);
+}
+
+static void hinic3_rxq_stats_init(struct hinic3_rxq *rxq)
+{
+	struct hinic3_rxq_stats *rxq_stats = &rxq->rxq_stats;
+
+	u64_stats_init(&rxq_stats->syncp);
+	hinic3_rxq_clean_stats(rxq_stats);
+}
+
+int hinic3_alloc_rxqs(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct pci_dev *pdev = nic_dev->pdev;
+	u16 num_rxqs = nic_dev->max_qps;
+	struct hinic3_rxq *rxq;
+	u16 q_id;
+
+	nic_dev->rxqs = kzalloc_objs(*nic_dev->rxqs, num_rxqs);
+	if (!nic_dev->rxqs)
+		return -ENOMEM;
+
+	for (q_id = 0; q_id < num_rxqs; q_id++) {
+		rxq = &nic_dev->rxqs[q_id];
+		rxq->netdev = netdev;
+		rxq->dev = &pdev->dev;
+		rxq->q_id = q_id;
+		rxq->buf_len = nic_dev->rx_buf_len;
+		rxq->buf_len_shift = ilog2(nic_dev->rx_buf_len);
+		rxq->q_depth = nic_dev->q_params.rq_depth;
+		rxq->q_mask = nic_dev->q_params.rq_depth - 1;
+
+		hinic3_rxq_stats_init(rxq);
+	}
+
+	return 0;
+}
+
+void hinic3_free_rxqs(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	kfree(nic_dev->rxqs);
+}
+
+static int rx_alloc_mapped_page(struct page_pool *page_pool,
+				struct hinic3_rx_info *rx_info, u16 buf_len)
+{
+	struct page *page;
+	u32 page_offset;
+
+	if (likely(rx_info->page))
+		return 0;
+
+	page = page_pool_dev_alloc_frag(page_pool, &page_offset, buf_len);
+	if (unlikely(!page))
+		return -ENOMEM;
+
+	rx_info->page = page;
+	rx_info->page_offset = page_offset;
+
+	return 0;
+}
+
+/* Associate fixed completion element to every wqe in the rq. Every rq wqe will
+ * always post completion to the same place.
+ */
+static void rq_associate_cqes(struct hinic3_rxq *rxq)
+{
+	struct hinic3_queue_pages *qpages;
+	struct hinic3_rq_wqe *rq_wqe;
+	dma_addr_t cqe_dma;
+	u32 i;
+
+	qpages = &rxq->rq->wq.qpages;
+
+	for (i = 0; i < rxq->q_depth; i++) {
+		rq_wqe = get_q_element(qpages, i, NULL);
+		cqe_dma = rxq->cqe_start_paddr +
+			  i * sizeof(struct hinic3_rq_cqe);
+		rq_wqe->cqe_hi_addr = cpu_to_le32(upper_32_bits(cqe_dma));
+		rq_wqe->cqe_lo_addr = cpu_to_le32(lower_32_bits(cqe_dma));
+	}
+}
+
+static void rq_wqe_buf_set(struct hinic3_io_queue *rq, uint32_t wqe_idx,
+			   dma_addr_t dma_addr, u16 len)
+{
+	struct hinic3_rq_wqe *rq_wqe;
+
+	rq_wqe = get_q_element(&rq->wq.qpages, wqe_idx, NULL);
+	rq_wqe->buf_hi_addr = cpu_to_le32(upper_32_bits(dma_addr));
+	rq_wqe->buf_lo_addr = cpu_to_le32(lower_32_bits(dma_addr));
+}
+
+static u32 hinic3_rx_fill_buffers(struct hinic3_rxq *rxq)
+{
+	u32 i, free_wqebbs = rxq->delta - 1;
+	struct hinic3_rx_info *rx_info;
+	dma_addr_t dma_addr;
+	int err;
+
+	for (i = 0; i < free_wqebbs; i++) {
+		rx_info = &rxq->rx_info[rxq->next_to_update];
+
+		err = rx_alloc_mapped_page(rxq->page_pool, rx_info,
+					   rxq->buf_len);
+		if (unlikely(err))
+			break;
+
+		dma_addr = page_pool_get_dma_addr(rx_info->page) +
+			rx_info->page_offset;
+		rq_wqe_buf_set(rxq->rq, rxq->next_to_update, dma_addr,
+			       rxq->buf_len);
+		rxq->next_to_update = (rxq->next_to_update + 1) & rxq->q_mask;
+	}
+
+	if (likely(i)) {
+		hinic3_write_db(rxq->rq, rxq->q_id & 3, DB_CFLAG_DP_RQ,
+				rxq->next_to_update << HINIC3_NORMAL_RQ_WQE);
+		rxq->delta -= i;
+		rxq->next_to_alloc = rxq->next_to_update;
+	}
+
+	return i;
+}
+
+static u32 hinic3_alloc_rx_buffers(struct hinic3_dyna_rxq_res *rqres,
+				   u32 rq_depth, u16 buf_len)
+{
+	u32 free_wqebbs = rq_depth - 1;
+	u32 idx;
+	int err;
+
+	for (idx = 0; idx < free_wqebbs; idx++) {
+		err = rx_alloc_mapped_page(rqres->page_pool,
+					   &rqres->rx_info[idx], buf_len);
+		if (err)
+			break;
+	}
+
+	return idx;
+}
+
+static void hinic3_free_rx_buffers(struct hinic3_dyna_rxq_res *rqres,
+				   u32 q_depth)
+{
+	struct hinic3_rx_info *rx_info;
+	u32 i;
+
+	/* Free all the Rx ring sk_buffs */
+	for (i = 0; i < q_depth; i++) {
+		rx_info = &rqres->rx_info[i];
+
+		if (rx_info->page) {
+			page_pool_put_full_page(rqres->page_pool,
+						rx_info->page, false);
+			rx_info->page = NULL;
+		}
+	}
+}
+
+static void hinic3_add_rx_frag(struct hinic3_rxq *rxq,
+			       struct hinic3_rx_info *rx_info,
+			       struct sk_buff *skb, u32 size)
+{
+	struct page *page;
+	u8 *va;
+
+	page = rx_info->page;
+	va = (u8 *)page_address(page) + rx_info->page_offset;
+	net_prefetch(va);
+
+	page_pool_dma_sync_for_cpu(rxq->page_pool, page, rx_info->page_offset,
+				   rxq->buf_len);
+
+	if (size <= HINIC3_RX_HDR_SIZE && !skb_is_nonlinear(skb)) {
+		memcpy(__skb_put(skb, size), va,
+		       ALIGN(size, sizeof(long)));
+		page_pool_put_full_page(rxq->page_pool, page, false);
+
+		return;
+	}
+
+	skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
+			rx_info->page_offset, size, rxq->buf_len);
+	skb_mark_for_recycle(skb);
+}
+
+static void packaging_skb(struct hinic3_rxq *rxq, struct sk_buff *skb,
+			  u32 sge_num, u32 pkt_len)
+{
+	struct hinic3_rx_info *rx_info;
+	u32 temp_pkt_len = pkt_len;
+	u32 temp_sge_num = sge_num;
+	u32 sw_ci;
+	u32 size;
+
+	sw_ci = rxq->cons_idx & rxq->q_mask;
+	while (temp_sge_num) {
+		rx_info = &rxq->rx_info[sw_ci];
+		sw_ci = (sw_ci + 1) & rxq->q_mask;
+		if (unlikely(temp_pkt_len > rxq->buf_len)) {
+			size = rxq->buf_len;
+			temp_pkt_len -= rxq->buf_len;
+		} else {
+			size = temp_pkt_len;
+		}
+
+		hinic3_add_rx_frag(rxq, rx_info, skb, size);
+
+		/* clear contents of buffer_info */
+		rx_info->page = NULL;
+		temp_sge_num--;
+	}
+}
+
+static u32 hinic3_get_sge_num(struct hinic3_rxq *rxq, u32 pkt_len)
+{
+	u32 sge_num;
+
+	sge_num = pkt_len >> rxq->buf_len_shift;
+	sge_num += (pkt_len & (rxq->buf_len - 1)) ? 1 : 0;
+
+	return sge_num;
+}
+
+static struct sk_buff *hinic3_fetch_rx_buffer(struct hinic3_rxq *rxq,
+					      u32 pkt_len)
+{
+	struct sk_buff *skb;
+	u32 sge_num;
+
+	skb = napi_alloc_skb(&rxq->irq_cfg->napi, HINIC3_RX_HDR_SIZE);
+	if (unlikely(!skb))
+		return NULL;
+
+	sge_num = hinic3_get_sge_num(rxq, pkt_len);
+
+	net_prefetchw(skb->data);
+	packaging_skb(rxq, skb, sge_num, pkt_len);
+
+	rxq->cons_idx += sge_num;
+	rxq->delta += sge_num;
+
+	return skb;
+}
+
+static void hinic3_pull_tail(struct sk_buff *skb)
+{
+	skb_frag_t *frag = &skb_shinfo(skb)->frags[0];
+	unsigned int pull_len;
+	unsigned char *va;
+
+	va = skb_frag_address(frag);
+
+	/* we need the header to contain the greater of either ETH_HLEN or
+	 * 60 bytes if the skb->len is less than 60 for skb_pad.
+	 */
+	pull_len = eth_get_headlen(skb->dev, va, HINIC3_RX_HDR_SIZE);
+
+	/* align pull length to size of long to optimize memcpy performance */
+	skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));
+
+	/* update all of the pointers */
+	skb_frag_size_sub(frag, pull_len);
+	skb_frag_off_add(frag, pull_len);
+
+	skb->data_len -= pull_len;
+	skb->tail += pull_len;
+}
+
+static void hinic3_rx_csum(struct hinic3_rxq *rxq, u32 offload_type,
+			   u32 status, struct sk_buff *skb)
+{
+	u32 pkt_fmt = RQ_CQE_OFFOLAD_TYPE_GET(offload_type, TUNNEL_PKT_FORMAT);
+	u32 pkt_type = RQ_CQE_OFFOLAD_TYPE_GET(offload_type, PKT_TYPE);
+	u32 ip_type = RQ_CQE_OFFOLAD_TYPE_GET(offload_type, IP_TYPE);
+	u32 csum_err = RQ_CQE_STATUS_GET(status, CSUM_ERR);
+	struct net_device *netdev = rxq->netdev;
+	bool l2_tunnel;
+
+	if (!(netdev->features & NETIF_F_RXCSUM))
+		return;
+
+	if (unlikely(csum_err)) {
+		/* pkt type is recognized by HW, and csum is wrong */
+		skb->ip_summed = CHECKSUM_NONE;
+		return;
+	}
+
+	if (ip_type == HINIC3_RX_INVALID_IP_TYPE ||
+	    !(pkt_fmt == HINIC3_RX_PKT_FORMAT_NON_TUNNEL ||
+	      pkt_fmt == HINIC3_RX_PKT_FORMAT_VXLAN)) {
+		skb->ip_summed = CHECKSUM_NONE;
+		return;
+	}
+
+	switch (pkt_type) {
+	case HINIC3_RX_TCP_PKT:
+	case HINIC3_RX_UDP_PKT:
+	case HINIC3_RX_SCTP_PKT:
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		l2_tunnel = HINIC3_GET_RX_TUNNEL_PKT_FORMAT(offload_type) ==
+			    HINIC3_RX_PKT_FORMAT_VXLAN ? 1 : 0;
+		if (l2_tunnel) {
+			/* If we checked the outer header let the stack know */
+			skb->csum_level = 1;
+		}
+		break;
+	default:
+		skb->ip_summed = CHECKSUM_NONE;
+		break;
+	}
+}
+
+static void hinic3_lro_set_gso_params(struct sk_buff *skb, u16 num_lro)
+{
+	struct ethhdr *eth = (struct ethhdr *)(skb->data);
+	__be16 proto;
+
+	proto = __vlan_get_protocol(skb, eth->h_proto, NULL);
+
+	skb_shinfo(skb)->gso_size = DIV_ROUND_UP(skb->len - skb_headlen(skb),
+						 num_lro);
+	skb_shinfo(skb)->gso_type = proto == htons(ETH_P_IP) ?
+				    SKB_GSO_TCPV4 : SKB_GSO_TCPV6;
+	skb_shinfo(skb)->gso_segs = num_lro;
+}
+
+static int recv_one_pkt(struct hinic3_rxq *rxq, struct hinic3_rq_cqe *rx_cqe,
+			u32 pkt_len, u32 vlan_len, u32 status)
+{
+	struct net_device *netdev = rxq->netdev;
+	struct sk_buff *skb;
+	u32 offload_type;
+	u16 num_lro;
+
+	skb = hinic3_fetch_rx_buffer(rxq, pkt_len);
+	if (unlikely(!skb))
+		return -ENOMEM;
+
+	/* place header in linear portion of buffer */
+	if (skb_is_nonlinear(skb))
+		hinic3_pull_tail(skb);
+
+	offload_type = le32_to_cpu(rx_cqe->offload_type);
+	hinic3_rx_csum(rxq, offload_type, status, skb);
+
+	if ((netdev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
+	    RQ_CQE_OFFOLAD_TYPE_GET(offload_type, VLAN_EN)) {
+		u16 vid = RQ_CQE_SGE_GET(vlan_len, VLAN);
+
+		/* if the packet is a vlan pkt, the vid may be 0 */
+		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
+	}
+
+	num_lro = RQ_CQE_STATUS_GET(status, NUM_LRO);
+	if (num_lro)
+		hinic3_lro_set_gso_params(skb, num_lro);
+
+	skb_record_rx_queue(skb, rxq->q_id);
+	skb->protocol = eth_type_trans(skb, netdev);
+
+	if (skb_has_frag_list(skb)) {
+		napi_gro_flush(&rxq->irq_cfg->napi, false);
+		netif_receive_skb(skb);
+	} else {
+		napi_gro_receive(&rxq->irq_cfg->napi, skb);
+	}
+
+	return 0;
+}
+
+int hinic3_alloc_rxqs_res(struct net_device *netdev, u16 num_rq,
+			  u32 rq_depth, struct hinic3_dyna_rxq_res *rxqs_res)
+{
+	u64 cqe_mem_size = sizeof(struct hinic3_rq_cqe) * rq_depth;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct page_pool_params pp_params = {};
+	struct hinic3_dyna_rxq_res *rqres;
+	u32 pkt_idx;
+	int idx;
+
+	for (idx = 0; idx < num_rq; idx++) {
+		rqres = &rxqs_res[idx];
+		rqres->rx_info = kzalloc_objs(*rqres->rx_info, rq_depth);
+		if (!rqres->rx_info)
+			goto err_free_rqres;
+
+		rqres->cqe_start_vaddr =
+			dma_alloc_coherent(&nic_dev->pdev->dev, cqe_mem_size,
+					   &rqres->cqe_start_paddr, GFP_KERNEL);
+		if (!rqres->cqe_start_vaddr) {
+			netdev_err(netdev, "Failed to alloc rxq%d rx cqe\n",
+				   idx);
+			goto err_free_rx_info;
+		}
+
+		pp_params.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV;
+		pp_params.pool_size = rq_depth * nic_dev->rx_buf_len /
+				      PAGE_SIZE;
+		pp_params.nid = dev_to_node(&nic_dev->pdev->dev);
+		pp_params.dev = &nic_dev->pdev->dev;
+		pp_params.dma_dir = DMA_FROM_DEVICE;
+		pp_params.max_len = PAGE_SIZE;
+		rqres->page_pool = page_pool_create(&pp_params);
+		if (IS_ERR(rqres->page_pool)) {
+			netdev_err(netdev, "Failed to create rxq%d page pool\n",
+				   idx);
+			goto err_free_cqe;
+		}
+
+		pkt_idx = hinic3_alloc_rx_buffers(rqres, rq_depth,
+						  nic_dev->rx_buf_len);
+		if (!pkt_idx) {
+			netdev_err(netdev, "Failed to alloc rxq%d rx buffers\n",
+				   idx);
+			goto err_destroy_page_pool;
+		}
+		rqres->next_to_alloc = pkt_idx;
+	}
+
+	return 0;
+
+err_destroy_page_pool:
+	page_pool_destroy(rqres->page_pool);
+err_free_cqe:
+	dma_free_coherent(&nic_dev->pdev->dev, cqe_mem_size,
+			  rqres->cqe_start_vaddr,
+			  rqres->cqe_start_paddr);
+err_free_rx_info:
+	kfree(rqres->rx_info);
+err_free_rqres:
+	hinic3_free_rxqs_res(netdev, idx, rq_depth, rxqs_res);
+
+	return -ENOMEM;
+}
+
+void hinic3_free_rxqs_res(struct net_device *netdev, u16 num_rq,
+			  u32 rq_depth, struct hinic3_dyna_rxq_res *rxqs_res)
+{
+	u64 cqe_mem_size = sizeof(struct hinic3_rq_cqe) * rq_depth;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_dyna_rxq_res *rqres;
+	int idx;
+
+	for (idx = 0; idx < num_rq; idx++) {
+		rqres = &rxqs_res[idx];
+
+		hinic3_free_rx_buffers(rqres, rq_depth);
+		page_pool_destroy(rqres->page_pool);
+		dma_free_coherent(&nic_dev->pdev->dev, cqe_mem_size,
+				  rqres->cqe_start_vaddr,
+				  rqres->cqe_start_paddr);
+		kfree(rqres->rx_info);
+	}
+}
+
+int hinic3_configure_rxqs(struct net_device *netdev, u16 num_rq,
+			  u32 rq_depth, struct hinic3_dyna_rxq_res *rxqs_res)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_dyna_rxq_res *rqres;
+	struct msix_entry *msix_entry;
+	struct hinic3_rxq *rxq;
+	u16 q_id;
+	u32 pkts;
+
+	for (q_id = 0; q_id < num_rq; q_id++) {
+		rxq = &nic_dev->rxqs[q_id];
+		rqres = &rxqs_res[q_id];
+		msix_entry = &nic_dev->qps_msix_entries[q_id];
+
+		rxq->irq_id = msix_entry->vector;
+		rxq->msix_entry_idx = msix_entry->entry;
+		rxq->next_to_update = 0;
+		rxq->next_to_alloc = rqres->next_to_alloc;
+		rxq->q_depth = rq_depth;
+		rxq->delta = rxq->q_depth;
+		rxq->q_mask = rxq->q_depth - 1;
+		rxq->cons_idx = 0;
+
+		rxq->cqe_arr = rqres->cqe_start_vaddr;
+		rxq->cqe_start_paddr = rqres->cqe_start_paddr;
+		rxq->rx_info = rqres->rx_info;
+		rxq->page_pool = rqres->page_pool;
+
+		rxq->rq = &nic_dev->nic_io->rq[rxq->q_id];
+
+		rq_associate_cqes(rxq);
+
+		pkts = hinic3_rx_fill_buffers(rxq);
+		if (!pkts) {
+			netdev_err(netdev, "Failed to fill Rx buffer\n");
+			return -ENOMEM;
+		}
+	}
+
+	return 0;
+}
+
+int hinic3_rx_poll(struct hinic3_rxq *rxq, int budget)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(rxq->netdev);
+	u32 sw_ci, status, pkt_len, vlan_len;
+	struct hinic3_rq_cqe *rx_cqe;
+	u32 num_wqe = 0;
+	int nr_pkts = 0;
+	u16 num_lro;
+
+	while (likely(nr_pkts < budget)) {
+		sw_ci = rxq->cons_idx & rxq->q_mask;
+		rx_cqe = rxq->cqe_arr + sw_ci;
+		status = le32_to_cpu(rx_cqe->status);
+		if (!RQ_CQE_STATUS_GET(status, RXDONE))
+			break;
+
+		/* make sure we read rx_done before packet length */
+		rmb();
+
+		vlan_len = le32_to_cpu(rx_cqe->vlan_len);
+		pkt_len = RQ_CQE_SGE_GET(vlan_len, LEN);
+		if (recv_one_pkt(rxq, rx_cqe, pkt_len, vlan_len, status))
+			break;
+
+		nr_pkts++;
+		num_lro = RQ_CQE_STATUS_GET(status, NUM_LRO);
+		if (num_lro)
+			num_wqe += hinic3_get_sge_num(rxq, pkt_len);
+
+		rx_cqe->status = 0;
+
+		if (num_wqe >= nic_dev->lro_replenish_thld)
+			break;
+	}
+
+	if (rxq->delta >= HINIC3_RX_BUFFER_WRITE)
+		hinic3_rx_fill_buffers(rxq);
+
+	return nr_pkts;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_rx.h

@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_RX_H_
+#define _HINIC3_RX_H_
+
+#include <linux/bitfield.h>
+#include <linux/dim.h>
+#include <linux/netdevice.h>
+
+#define RQ_CQE_OFFOLAD_TYPE_PKT_TYPE_MASK           GENMASK(4, 0)
+#define RQ_CQE_OFFOLAD_TYPE_IP_TYPE_MASK            GENMASK(6, 5)
+#define RQ_CQE_OFFOLAD_TYPE_TUNNEL_PKT_FORMAT_MASK  GENMASK(11, 8)
+#define RQ_CQE_OFFOLAD_TYPE_VLAN_EN_MASK            BIT(21)
+#define RQ_CQE_OFFOLAD_TYPE_GET(val, member) \
+	FIELD_GET(RQ_CQE_OFFOLAD_TYPE_##member##_MASK, val)
+
+#define HINIC3_GET_RX_TUNNEL_PKT_FORMAT(offload_type) \
+	RQ_CQE_OFFOLAD_TYPE_GET(offload_type, TUNNEL_PKT_FORMAT)
+
+#define RQ_CQE_SGE_VLAN_MASK  GENMASK(15, 0)
+#define RQ_CQE_SGE_LEN_MASK   GENMASK(31, 16)
+#define RQ_CQE_SGE_GET(val, member) \
+	FIELD_GET(RQ_CQE_SGE_##member##_MASK, val)
+
+#define RQ_CQE_STATUS_CSUM_ERR_MASK  GENMASK(15, 0)
+#define RQ_CQE_STATUS_NUM_LRO_MASK   GENMASK(23, 16)
+#define RQ_CQE_STATUS_RXDONE_MASK    BIT(31)
+#define RQ_CQE_STATUS_GET(val, member) \
+	FIELD_GET(RQ_CQE_STATUS_##member##_MASK, val)
+
+struct hinic3_rxq_stats {
+	u64                   packets;
+	u64                   bytes;
+	u64                   errors;
+	u64                   csum_errors;
+	u64                   other_errors;
+	u64                   dropped;
+	u64                   rx_buf_empty;
+	u64                   alloc_skb_err;
+	u64                   alloc_rx_buf_err;
+	u64                   restore_drop_sge;
+	struct u64_stats_sync syncp;
+};
+
+/* RX Completion information that is provided by HW for a specific RX WQE */
+struct hinic3_rq_cqe {
+	__le32 status;
+	__le32 vlan_len;
+	__le32 offload_type;
+	__le32 rsvd3;
+	__le32 rsvd4;
+	__le32 rsvd5;
+	__le32 rsvd6;
+	__le32 pkt_info;
+};
+
+struct hinic3_rq_wqe {
+	__le32 buf_hi_addr;
+	__le32 buf_lo_addr;
+	__le32 cqe_hi_addr;
+	__le32 cqe_lo_addr;
+};
+
+struct hinic3_rx_info {
+	struct page      *page;
+	u32              page_offset;
+};
+
+struct hinic3_rxq {
+	struct net_device       *netdev;
+
+	u16                     q_id;
+	u32                     q_depth;
+	u32                     q_mask;
+
+	u16                     buf_len;
+	u32                     buf_len_shift;
+
+	struct hinic3_rxq_stats rxq_stats;
+	u32                     cons_idx;
+	u32                     delta;
+
+	u32                     irq_id;
+	u16                     msix_entry_idx;
+
+	/* cqe_arr and rx_info are arrays of rq_depth elements. Each element is
+	 * statically associated (by index) to a specific rq_wqe.
+	 */
+	struct hinic3_rq_cqe   *cqe_arr;
+	struct hinic3_rx_info  *rx_info;
+	struct page_pool       *page_pool;
+
+	struct hinic3_io_queue *rq;
+
+	struct hinic3_irq_cfg  *irq_cfg;
+	u16                    next_to_alloc;
+	u16                    next_to_update;
+	struct device          *dev; /* device for DMA mapping */
+
+	dma_addr_t             cqe_start_paddr;
+
+	struct dim             dim;
+
+	u8                     last_coalesc_timer_cfg;
+	u8                     last_pending_limit;
+} ____cacheline_aligned;
+
+struct hinic3_dyna_rxq_res {
+	u16                   next_to_alloc;
+	struct hinic3_rx_info *rx_info;
+	dma_addr_t            cqe_start_paddr;
+	void                  *cqe_start_vaddr;
+	struct page_pool      *page_pool;
+};
+
+int hinic3_alloc_rxqs(struct net_device *netdev);
+void hinic3_free_rxqs(struct net_device *netdev);
+
+int hinic3_alloc_rxqs_res(struct net_device *netdev, u16 num_rq,
+			  u32 rq_depth, struct hinic3_dyna_rxq_res *rxqs_res);
+void hinic3_free_rxqs_res(struct net_device *netdev, u16 num_rq,
+			  u32 rq_depth, struct hinic3_dyna_rxq_res *rxqs_res);
+int hinic3_configure_rxqs(struct net_device *netdev, u16 num_rq,
+			  u32 rq_depth, struct hinic3_dyna_rxq_res *rxqs_res);
+int hinic3_rx_poll(struct hinic3_rxq *rxq, int budget);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_tx.c

@@ -0,0 +1,797 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/if_vlan.h>
+#include <linux/iopoll.h>
+#include <net/ip6_checksum.h>
+#include <net/ipv6.h>
+#include <net/netdev_queues.h>
+
+#include "hinic3_hwdev.h"
+#include "hinic3_nic_cfg.h"
+#include "hinic3_nic_dev.h"
+#include "hinic3_nic_io.h"
+#include "hinic3_tx.h"
+#include "hinic3_wq.h"
+
+#define MIN_SKB_LEN                32
+
+static void hinic3_txq_clean_stats(struct hinic3_txq_stats *txq_stats)
+{
+	u64_stats_update_begin(&txq_stats->syncp);
+	txq_stats->bytes = 0;
+	txq_stats->packets = 0;
+	txq_stats->busy = 0;
+	txq_stats->dropped = 0;
+
+	txq_stats->skb_pad_err = 0;
+	txq_stats->frag_len_overflow = 0;
+	txq_stats->offload_cow_skb_err = 0;
+	txq_stats->map_frag_err = 0;
+	txq_stats->unknown_tunnel_pkt = 0;
+	txq_stats->frag_size_err = 0;
+	u64_stats_update_end(&txq_stats->syncp);
+}
+
+static void hinic3_txq_stats_init(struct hinic3_txq *txq)
+{
+	struct hinic3_txq_stats *txq_stats = &txq->txq_stats;
+
+	u64_stats_init(&txq_stats->syncp);
+	hinic3_txq_clean_stats(txq_stats);
+}
+
+int hinic3_alloc_txqs(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 q_id, num_txqs = nic_dev->max_qps;
+	struct pci_dev *pdev = nic_dev->pdev;
+	struct hinic3_txq *txq;
+
+	nic_dev->txqs = kzalloc_objs(*nic_dev->txqs, num_txqs);
+	if (!nic_dev->txqs)
+		return -ENOMEM;
+
+	for (q_id = 0; q_id < num_txqs; q_id++) {
+		txq = &nic_dev->txqs[q_id];
+		txq->netdev = netdev;
+		txq->q_id = q_id;
+		txq->q_depth = nic_dev->q_params.sq_depth;
+		txq->q_mask = nic_dev->q_params.sq_depth - 1;
+		txq->dev = &pdev->dev;
+
+		hinic3_txq_stats_init(txq);
+	}
+
+	return 0;
+}
+
+void hinic3_free_txqs(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+
+	kfree(nic_dev->txqs);
+}
+
+static void hinic3_set_buf_desc(struct hinic3_sq_bufdesc *buf_descs,
+				dma_addr_t addr, u32 len)
+{
+	buf_descs->hi_addr = cpu_to_le32(upper_32_bits(addr));
+	buf_descs->lo_addr = cpu_to_le32(lower_32_bits(addr));
+	buf_descs->len = cpu_to_le32(len);
+}
+
+static int hinic3_tx_map_skb(struct net_device *netdev, struct sk_buff *skb,
+			     struct hinic3_txq *txq,
+			     struct hinic3_tx_info *tx_info,
+			     struct hinic3_sq_wqe_combo *wqe_combo)
+{
+	struct hinic3_sq_wqe_desc *wqe_desc = wqe_combo->ctrl_bd0;
+	struct hinic3_sq_bufdesc *buf_desc = wqe_combo->bds_head;
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_dma_info *dma_info = tx_info->dma_info;
+	struct pci_dev *pdev = nic_dev->pdev;
+	skb_frag_t *frag;
+	u32 i, idx;
+	int err;
+
+	dma_info[0].dma = dma_map_single(&pdev->dev, skb->data,
+					 skb_headlen(skb), DMA_TO_DEVICE);
+	if (dma_mapping_error(&pdev->dev, dma_info[0].dma))
+		return -EFAULT;
+
+	dma_info[0].len = skb_headlen(skb);
+
+	wqe_desc->hi_addr = cpu_to_le32(upper_32_bits(dma_info[0].dma));
+	wqe_desc->lo_addr = cpu_to_le32(lower_32_bits(dma_info[0].dma));
+
+	wqe_desc->ctrl_len = cpu_to_le32(dma_info[0].len);
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		frag = &(skb_shinfo(skb)->frags[i]);
+		if (unlikely(i == wqe_combo->first_bds_num))
+			buf_desc = wqe_combo->bds_sec2;
+
+		idx = i + 1;
+		dma_info[idx].dma = skb_frag_dma_map(&pdev->dev, frag, 0,
+						     skb_frag_size(frag),
+						     DMA_TO_DEVICE);
+		if (dma_mapping_error(&pdev->dev, dma_info[idx].dma)) {
+			err = -EFAULT;
+			goto err_unmap_page;
+		}
+		dma_info[idx].len = skb_frag_size(frag);
+
+		hinic3_set_buf_desc(buf_desc, dma_info[idx].dma,
+				    dma_info[idx].len);
+		buf_desc++;
+	}
+
+	return 0;
+
+err_unmap_page:
+	while (idx > 1) {
+		idx--;
+		dma_unmap_page(&pdev->dev, dma_info[idx].dma,
+			       dma_info[idx].len, DMA_TO_DEVICE);
+	}
+	dma_unmap_single(&pdev->dev, dma_info[0].dma, dma_info[0].len,
+			 DMA_TO_DEVICE);
+
+	return err;
+}
+
+static void hinic3_tx_unmap_skb(struct net_device *netdev,
+				struct sk_buff *skb,
+				struct hinic3_dma_info *dma_info)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct pci_dev *pdev = nic_dev->pdev;
+	int i;
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags;) {
+		i++;
+		dma_unmap_page(&pdev->dev,
+			       dma_info[i].dma,
+			       dma_info[i].len, DMA_TO_DEVICE);
+	}
+
+	dma_unmap_single(&pdev->dev, dma_info[0].dma,
+			 dma_info[0].len, DMA_TO_DEVICE);
+}
+
+static void free_all_tx_skbs(struct net_device *netdev, u32 sq_depth,
+			     struct hinic3_tx_info *tx_info_arr)
+{
+	struct hinic3_tx_info *tx_info;
+	u32 idx;
+
+	for (idx = 0; idx < sq_depth; idx++) {
+		tx_info = &tx_info_arr[idx];
+		if (tx_info->skb) {
+			hinic3_tx_unmap_skb(netdev, tx_info->skb,
+					    tx_info->dma_info);
+			dev_kfree_skb_any(tx_info->skb);
+			tx_info->skb = NULL;
+		}
+	}
+}
+
+union hinic3_ip {
+	struct iphdr   *v4;
+	struct ipv6hdr *v6;
+	unsigned char  *hdr;
+};
+
+union hinic3_l4 {
+	struct tcphdr *tcp;
+	struct udphdr *udp;
+	unsigned char *hdr;
+};
+
+enum hinic3_l3_type {
+	HINIC3_L3_UNKNOWN         = 0,
+	HINIC3_L3_IP6_PKT         = 1,
+	HINIC3_L3_IP4_PKT_NO_CSUM = 2,
+	HINIC3_L3_IP4_PKT_CSUM    = 3,
+};
+
+enum hinic3_l4_offload_type {
+	HINIC3_L4_OFFLOAD_DISABLE = 0,
+	HINIC3_L4_OFFLOAD_TCP     = 1,
+	HINIC3_L4_OFFLOAD_STCP    = 2,
+	HINIC3_L4_OFFLOAD_UDP     = 3,
+};
+
+/* initialize l4 offset and offload */
+static void get_inner_l4_info(struct sk_buff *skb, union hinic3_l4 *l4,
+			      u8 l4_proto, u32 *offset,
+			      enum hinic3_l4_offload_type *l4_offload)
+{
+	switch (l4_proto) {
+	case IPPROTO_TCP:
+		*l4_offload = HINIC3_L4_OFFLOAD_TCP;
+		/* To be same with TSO, payload offset begins from payload */
+		*offset = (l4->tcp->doff << TCP_HDR_DATA_OFF_UNIT_SHIFT) +
+			   TRANSPORT_OFFSET(l4->hdr, skb);
+		break;
+
+	case IPPROTO_UDP:
+		*l4_offload = HINIC3_L4_OFFLOAD_UDP;
+		*offset = TRANSPORT_OFFSET(l4->hdr, skb);
+		break;
+	default:
+		*l4_offload = HINIC3_L4_OFFLOAD_DISABLE;
+		*offset = 0;
+	}
+}
+
+static int hinic3_tx_csum(struct hinic3_txq *txq, struct hinic3_sq_task *task,
+			  struct sk_buff *skb)
+{
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		return 0;
+
+	if (skb->encapsulation) {
+		union hinic3_ip ip;
+		u8 l4_proto;
+
+		task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1,
+								 TUNNEL_FLAG));
+
+		ip.hdr = skb_network_header(skb);
+		if (ip.v4->version == 4) {
+			l4_proto = ip.v4->protocol;
+		} else if (ip.v4->version == 6) {
+			union hinic3_l4 l4;
+			unsigned char *exthdr;
+			__be16 frag_off;
+
+			exthdr = ip.hdr + sizeof(*ip.v6);
+			l4_proto = ip.v6->nexthdr;
+			l4.hdr = skb_transport_header(skb);
+			if (l4.hdr != exthdr)
+				ipv6_skip_exthdr(skb, exthdr - skb->data,
+						 &l4_proto, &frag_off);
+		} else {
+			l4_proto = IPPROTO_RAW;
+		}
+
+		if (l4_proto != IPPROTO_UDP ||
+		    ((struct udphdr *)skb_transport_header(skb))->dest !=
+		    VXLAN_OFFLOAD_PORT_LE) {
+			/* Unsupported tunnel packet, disable csum offload */
+			skb_checksum_help(skb);
+			return 0;
+		}
+	}
+
+	task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1, INNER_L4_EN));
+
+	return 1;
+}
+
+static void get_inner_l3_l4_type(struct sk_buff *skb, union hinic3_ip *ip,
+				 union hinic3_l4 *l4,
+				 enum hinic3_l3_type *l3_type, u8 *l4_proto)
+{
+	unsigned char *exthdr;
+	__be16 frag_off;
+
+	if (ip->v4->version == 4) {
+		*l3_type = HINIC3_L3_IP4_PKT_CSUM;
+		*l4_proto = ip->v4->protocol;
+	} else if (ip->v4->version == 6) {
+		*l3_type = HINIC3_L3_IP6_PKT;
+		exthdr = ip->hdr + sizeof(*ip->v6);
+		*l4_proto = ip->v6->nexthdr;
+		if (exthdr != l4->hdr) {
+			ipv6_skip_exthdr(skb, exthdr - skb->data,
+					 l4_proto, &frag_off);
+		}
+	} else {
+		*l3_type = HINIC3_L3_UNKNOWN;
+		*l4_proto = 0;
+	}
+}
+
+static void hinic3_set_tso_info(struct hinic3_sq_task *task, __le32 *queue_info,
+				enum hinic3_l4_offload_type l4_offload,
+				u32 offset, u32 mss)
+{
+	if (l4_offload == HINIC3_L4_OFFLOAD_TCP) {
+		*queue_info |= cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(1, TSO));
+		task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1,
+								 INNER_L4_EN));
+	} else if (l4_offload == HINIC3_L4_OFFLOAD_UDP) {
+		*queue_info |= cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(1, UFO));
+		task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1,
+								 INNER_L4_EN));
+	}
+
+	/* enable L3 calculation */
+	task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1, INNER_L3_EN));
+
+	*queue_info |= cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(offset >> 1, PLDOFF));
+
+	/* set MSS value */
+	*queue_info &= cpu_to_le32(~SQ_CTRL_QUEUE_INFO_MSS_MASK);
+	*queue_info |= cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(mss, MSS));
+}
+
+static __sum16 csum_magic(union hinic3_ip *ip, unsigned short proto)
+{
+	return (ip->v4->version == 4) ?
+		csum_tcpudp_magic(ip->v4->saddr, ip->v4->daddr, 0, proto, 0) :
+		csum_ipv6_magic(&ip->v6->saddr, &ip->v6->daddr, 0, proto, 0);
+}
+
+static int hinic3_tso(struct hinic3_sq_task *task, __le32 *queue_info,
+		      struct sk_buff *skb)
+{
+	enum hinic3_l4_offload_type l4_offload;
+	enum hinic3_l3_type l3_type;
+	union hinic3_ip ip;
+	union hinic3_l4 l4;
+	u8 l4_proto;
+	u32 offset;
+	int err;
+
+	if (!skb_is_gso(skb))
+		return 0;
+
+	err = skb_cow_head(skb, 0);
+	if (err < 0)
+		return err;
+
+	if (skb->encapsulation) {
+		u32 gso_type = skb_shinfo(skb)->gso_type;
+		/* L3 checksum is always enabled */
+		task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1, OUT_L3_EN));
+		task->pkt_info0 |= cpu_to_le32(SQ_TASK_INFO0_SET(1,
+								 TUNNEL_FLAG));
+
+		l4.hdr = skb_transport_header(skb);
+		ip.hdr = skb_network_header(skb);
+
+		if (gso_type & SKB_GSO_UDP_TUNNEL_CSUM) {
+			l4.udp->check = ~csum_magic(&ip, IPPROTO_UDP);
+			task->pkt_info0 |=
+				cpu_to_le32(SQ_TASK_INFO0_SET(1, OUT_L4_EN));
+		}
+
+		ip.hdr = skb_inner_network_header(skb);
+		l4.hdr = skb_inner_transport_header(skb);
+	} else {
+		ip.hdr = skb_network_header(skb);
+		l4.hdr = skb_transport_header(skb);
+	}
+
+	get_inner_l3_l4_type(skb, &ip, &l4, &l3_type, &l4_proto);
+
+	if (l4_proto == IPPROTO_TCP)
+		l4.tcp->check = ~csum_magic(&ip, IPPROTO_TCP);
+
+	get_inner_l4_info(skb, &l4, l4_proto, &offset, &l4_offload);
+
+	hinic3_set_tso_info(task, queue_info, l4_offload, offset,
+			    skb_shinfo(skb)->gso_size);
+
+	return 1;
+}
+
+static void hinic3_set_vlan_tx_offload(struct hinic3_sq_task *task,
+				       u16 vlan_tag, u8 vlan_tpid)
+{
+	/* vlan_tpid: 0=select TPID0 in IPSU, 1=select TPID1 in IPSU
+	 * 2=select TPID2 in IPSU, 3=select TPID3 in IPSU,
+	 * 4=select TPID4 in IPSU
+	 */
+	task->vlan_offload =
+		cpu_to_le32(SQ_TASK_INFO3_SET(vlan_tag, VLAN_TAG) |
+			    SQ_TASK_INFO3_SET(vlan_tpid, VLAN_TPID) |
+			    SQ_TASK_INFO3_SET(1, VLAN_TAG_VALID));
+}
+
+static u32 hinic3_tx_offload(struct sk_buff *skb, struct hinic3_sq_task *task,
+			     __le32 *queue_info, struct hinic3_txq *txq)
+{
+	u32 offload = 0;
+	int tso_cs_en;
+
+	task->pkt_info0 = 0;
+	task->ip_identify = 0;
+	task->rsvd = 0;
+	task->vlan_offload = 0;
+
+	tso_cs_en = hinic3_tso(task, queue_info, skb);
+	if (tso_cs_en < 0) {
+		offload = HINIC3_TX_OFFLOAD_INVALID;
+		return offload;
+	} else if (tso_cs_en) {
+		offload |= HINIC3_TX_OFFLOAD_TSO;
+	} else {
+		tso_cs_en = hinic3_tx_csum(txq, task, skb);
+		if (tso_cs_en)
+			offload |= HINIC3_TX_OFFLOAD_CSUM;
+	}
+
+#define VLAN_INSERT_MODE_MAX 5
+	if (unlikely(skb_vlan_tag_present(skb))) {
+		/* select vlan insert mode by qid, default 802.1Q Tag type */
+		hinic3_set_vlan_tx_offload(task, skb_vlan_tag_get(skb),
+					   txq->q_id % VLAN_INSERT_MODE_MAX);
+		offload |= HINIC3_TX_OFFLOAD_VLAN;
+	}
+
+	if (unlikely(SQ_CTRL_QUEUE_INFO_GET(*queue_info, PLDOFF) >
+		     SQ_CTRL_MAX_PLDOFF)) {
+		offload = HINIC3_TX_OFFLOAD_INVALID;
+		return offload;
+	}
+
+	return offload;
+}
+
+static u16 hinic3_get_and_update_sq_owner(struct hinic3_io_queue *sq,
+					  u16 curr_pi, u16 wqebb_cnt)
+{
+	u16 owner = sq->owner;
+
+	if (unlikely(curr_pi + wqebb_cnt >= sq->wq.q_depth))
+		sq->owner = !sq->owner;
+
+	return owner;
+}
+
+static u16 hinic3_set_wqe_combo(struct hinic3_txq *txq,
+				struct hinic3_sq_wqe_combo *wqe_combo,
+				u32 offload, u16 num_sge, u16 *curr_pi)
+{
+	struct hinic3_sq_bufdesc *first_part_wqebbs, *second_part_wqebbs;
+	u16 first_part_wqebbs_num, tmp_pi;
+
+	wqe_combo->ctrl_bd0 = hinic3_wq_get_one_wqebb(&txq->sq->wq, curr_pi);
+	if (!offload && num_sge == 1) {
+		wqe_combo->wqe_type = SQ_WQE_COMPACT_TYPE;
+		return hinic3_get_and_update_sq_owner(txq->sq, *curr_pi, 1);
+	}
+
+	wqe_combo->wqe_type = SQ_WQE_EXTENDED_TYPE;
+
+	if (offload) {
+		wqe_combo->task = hinic3_wq_get_one_wqebb(&txq->sq->wq,
+							  &tmp_pi);
+		wqe_combo->task_type = SQ_WQE_TASKSECT_16BYTES;
+	} else {
+		wqe_combo->task_type = SQ_WQE_TASKSECT_46BITS;
+	}
+
+	if (num_sge > 1) {
+		/* first wqebb contain bd0, and bd size is equal to sq wqebb
+		 * size, so we use (num_sge - 1) as wanted weqbb_cnt
+		 */
+		hinic3_wq_get_multi_wqebbs(&txq->sq->wq, num_sge - 1, &tmp_pi,
+					   &first_part_wqebbs,
+					   &second_part_wqebbs,
+					   &first_part_wqebbs_num);
+		wqe_combo->bds_head = first_part_wqebbs;
+		wqe_combo->bds_sec2 = second_part_wqebbs;
+		wqe_combo->first_bds_num = first_part_wqebbs_num;
+	}
+
+	return hinic3_get_and_update_sq_owner(txq->sq, *curr_pi,
+					      num_sge + !!offload);
+}
+
+static void hinic3_prepare_sq_ctrl(struct hinic3_sq_wqe_combo *wqe_combo,
+				   __le32 queue_info, int nr_descs, u16 owner)
+{
+	struct hinic3_sq_wqe_desc *wqe_desc = wqe_combo->ctrl_bd0;
+
+	if (wqe_combo->wqe_type == SQ_WQE_COMPACT_TYPE) {
+		wqe_desc->ctrl_len |=
+			cpu_to_le32(SQ_CTRL_SET(SQ_NORMAL_WQE, DATA_FORMAT) |
+				    SQ_CTRL_SET(wqe_combo->wqe_type, EXTENDED) |
+				    SQ_CTRL_SET(owner, OWNER));
+
+		/* compact wqe queue_info will transfer to chip */
+		wqe_desc->queue_info = 0;
+		return;
+	}
+
+	wqe_desc->ctrl_len |=
+		cpu_to_le32(SQ_CTRL_SET(nr_descs, BUFDESC_NUM) |
+			    SQ_CTRL_SET(wqe_combo->task_type, TASKSECT_LEN) |
+			    SQ_CTRL_SET(SQ_NORMAL_WQE, DATA_FORMAT) |
+			    SQ_CTRL_SET(wqe_combo->wqe_type, EXTENDED) |
+			    SQ_CTRL_SET(owner, OWNER));
+
+	wqe_desc->queue_info = queue_info;
+	wqe_desc->queue_info |= cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(1, UC));
+
+	if (!SQ_CTRL_QUEUE_INFO_GET(wqe_desc->queue_info, MSS)) {
+		wqe_desc->queue_info |=
+		    cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(HINIC3_TX_MSS_DEFAULT, MSS));
+	} else if (SQ_CTRL_QUEUE_INFO_GET(wqe_desc->queue_info, MSS) <
+		   HINIC3_TX_MSS_MIN) {
+		/* mss should not be less than 80 */
+		wqe_desc->queue_info &=
+		    cpu_to_le32(~SQ_CTRL_QUEUE_INFO_MSS_MASK);
+		wqe_desc->queue_info |=
+		    cpu_to_le32(SQ_CTRL_QUEUE_INFO_SET(HINIC3_TX_MSS_MIN, MSS));
+	}
+}
+
+static netdev_tx_t hinic3_send_one_skb(struct sk_buff *skb,
+				       struct net_device *netdev,
+				       struct hinic3_txq *txq)
+{
+	struct hinic3_sq_wqe_combo wqe_combo = {};
+	struct hinic3_tx_info *tx_info;
+	struct hinic3_sq_task task;
+	u16 wqebb_cnt, num_sge;
+	__le32 queue_info = 0;
+	u16 saved_wq_prod_idx;
+	u16 owner, pi = 0;
+	u8 saved_sq_owner;
+	u32 offload;
+	int err;
+
+	if (unlikely(skb->len < MIN_SKB_LEN)) {
+		if (skb_pad(skb, MIN_SKB_LEN - skb->len))
+			goto err_out;
+
+		skb->len = MIN_SKB_LEN;
+	}
+
+	num_sge = skb_shinfo(skb)->nr_frags + 1;
+	/* assume normal wqe format + 1 wqebb for task info */
+	wqebb_cnt = num_sge + 1;
+
+	if (unlikely(hinic3_wq_free_wqebbs(&txq->sq->wq) < wqebb_cnt)) {
+		if (likely(wqebb_cnt > txq->tx_stop_thrs))
+			txq->tx_stop_thrs = min(wqebb_cnt, txq->tx_start_thrs);
+
+		netif_subqueue_try_stop(netdev, txq->sq->q_id,
+					hinic3_wq_free_wqebbs(&txq->sq->wq),
+					txq->tx_start_thrs);
+
+		return NETDEV_TX_BUSY;
+	}
+
+	offload = hinic3_tx_offload(skb, &task, &queue_info, txq);
+	if (unlikely(offload == HINIC3_TX_OFFLOAD_INVALID)) {
+		goto err_drop_pkt;
+	} else if (!offload) {
+		wqebb_cnt -= 1;
+		if (unlikely(num_sge == 1 &&
+			     skb->len > HINIC3_COMPACT_WQEE_SKB_MAX_LEN))
+			goto err_drop_pkt;
+	}
+
+	saved_wq_prod_idx = txq->sq->wq.prod_idx;
+	saved_sq_owner = txq->sq->owner;
+
+	owner = hinic3_set_wqe_combo(txq, &wqe_combo, offload, num_sge, &pi);
+	if (offload)
+		*wqe_combo.task = task;
+
+	tx_info = &txq->tx_info[pi];
+	tx_info->skb = skb;
+	tx_info->wqebb_cnt = wqebb_cnt;
+
+	err = hinic3_tx_map_skb(netdev, skb, txq, tx_info, &wqe_combo);
+	if (err) {
+		/* Rollback work queue to reclaim the wqebb we did not use */
+		txq->sq->wq.prod_idx = saved_wq_prod_idx;
+		txq->sq->owner = saved_sq_owner;
+		goto err_drop_pkt;
+	}
+
+	netif_subqueue_sent(netdev, txq->sq->q_id, skb->len);
+	netif_subqueue_maybe_stop(netdev, txq->sq->q_id,
+				  hinic3_wq_free_wqebbs(&txq->sq->wq),
+				  txq->tx_stop_thrs,
+				  txq->tx_start_thrs);
+
+	hinic3_prepare_sq_ctrl(&wqe_combo, queue_info, num_sge, owner);
+	hinic3_write_db(txq->sq, 0, DB_CFLAG_DP_SQ,
+			hinic3_get_sq_local_pi(txq->sq));
+
+	return NETDEV_TX_OK;
+
+err_drop_pkt:
+	dev_kfree_skb_any(skb);
+err_out:
+	return NETDEV_TX_OK;
+}
+
+netdev_tx_t hinic3_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 q_id = skb_get_queue_mapping(skb);
+
+	if (unlikely(!netif_carrier_ok(netdev)))
+		goto err_drop_pkt;
+
+	if (unlikely(q_id >= nic_dev->q_params.num_qps))
+		goto err_drop_pkt;
+
+	return hinic3_send_one_skb(skb, netdev, &nic_dev->txqs[q_id]);
+
+err_drop_pkt:
+	dev_kfree_skb_any(skb);
+
+	return NETDEV_TX_OK;
+}
+
+static bool is_hw_complete_sq_process(struct hinic3_io_queue *sq)
+{
+	u16 sw_pi, hw_ci;
+
+	sw_pi = hinic3_get_sq_local_pi(sq);
+	hw_ci = hinic3_get_sq_hw_ci(sq);
+
+	return sw_pi == hw_ci;
+}
+
+#define HINIC3_FLUSH_QUEUE_POLL_SLEEP_US   10000
+#define HINIC3_FLUSH_QUEUE_POLL_TIMEOUT_US 10000000
+static int hinic3_stop_sq(struct hinic3_txq *txq)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(txq->netdev);
+	int err, rc;
+
+	err = read_poll_timeout(hinic3_force_drop_tx_pkt, rc,
+				is_hw_complete_sq_process(txq->sq) || rc,
+				HINIC3_FLUSH_QUEUE_POLL_SLEEP_US,
+				HINIC3_FLUSH_QUEUE_POLL_TIMEOUT_US,
+				true, nic_dev->hwdev);
+	if (rc)
+		return rc;
+	else
+		return err;
+}
+
+/* packet transmission should be stopped before calling this function */
+void hinic3_flush_txqs(struct net_device *netdev)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	u16 qid;
+	int err;
+
+	for (qid = 0; qid < nic_dev->q_params.num_qps; qid++) {
+		err = hinic3_stop_sq(&nic_dev->txqs[qid]);
+		netdev_tx_reset_subqueue(netdev, qid);
+		if (err)
+			netdev_err(netdev, "Failed to stop sq%u\n", qid);
+	}
+}
+
+#define HINIC3_BDS_PER_SQ_WQEBB \
+	(HINIC3_SQ_WQEBB_SIZE / sizeof(struct hinic3_sq_bufdesc))
+
+int hinic3_alloc_txqs_res(struct net_device *netdev, u16 num_sq,
+			  u32 sq_depth, struct hinic3_dyna_txq_res *txqs_res)
+{
+	struct hinic3_dyna_txq_res *tqres;
+	int idx;
+
+	for (idx = 0; idx < num_sq; idx++) {
+		tqres = &txqs_res[idx];
+
+		tqres->tx_info = kzalloc_objs(*tqres->tx_info, sq_depth);
+		if (!tqres->tx_info)
+			goto err_free_tqres;
+
+		tqres->bds = kzalloc_objs(*tqres->bds,
+					  sq_depth * HINIC3_BDS_PER_SQ_WQEBB + HINIC3_MAX_SQ_SGE);
+		if (!tqres->bds) {
+			kfree(tqres->tx_info);
+			goto err_free_tqres;
+		}
+	}
+
+	return 0;
+
+err_free_tqres:
+	while (idx > 0) {
+		idx--;
+		tqres = &txqs_res[idx];
+
+		kfree(tqres->bds);
+		kfree(tqres->tx_info);
+	}
+
+	return -ENOMEM;
+}
+
+void hinic3_free_txqs_res(struct net_device *netdev, u16 num_sq,
+			  u32 sq_depth, struct hinic3_dyna_txq_res *txqs_res)
+{
+	struct hinic3_dyna_txq_res *tqres;
+	int idx;
+
+	for (idx = 0; idx < num_sq; idx++) {
+		tqres = &txqs_res[idx];
+
+		free_all_tx_skbs(netdev, sq_depth, tqres->tx_info);
+		kfree(tqres->bds);
+		kfree(tqres->tx_info);
+	}
+}
+
+int hinic3_configure_txqs(struct net_device *netdev, u16 num_sq,
+			  u32 sq_depth, struct hinic3_dyna_txq_res *txqs_res)
+{
+	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
+	struct hinic3_dyna_txq_res *tqres;
+	struct hinic3_txq *txq;
+	u16 q_id;
+	u32 idx;
+
+	for (q_id = 0; q_id < num_sq; q_id++) {
+		txq = &nic_dev->txqs[q_id];
+		tqres = &txqs_res[q_id];
+
+		txq->q_depth = sq_depth;
+		txq->q_mask = sq_depth - 1;
+
+		txq->tx_stop_thrs = min(HINIC3_DEFAULT_STOP_THRS,
+					sq_depth / 20);
+		txq->tx_start_thrs = min(HINIC3_DEFAULT_START_THRS,
+					 sq_depth / 10);
+
+		txq->tx_info = tqres->tx_info;
+		for (idx = 0; idx < sq_depth; idx++)
+			txq->tx_info[idx].dma_info =
+				&tqres->bds[idx * HINIC3_BDS_PER_SQ_WQEBB];
+
+		txq->sq = &nic_dev->nic_io->sq[q_id];
+	}
+
+	return 0;
+}
+
+bool hinic3_tx_poll(struct hinic3_txq *txq, int budget)
+{
+	struct net_device *netdev = txq->netdev;
+	u16 hw_ci, sw_ci, q_id = txq->sq->q_id;
+	struct hinic3_tx_info *tx_info;
+	unsigned int bytes_compl = 0;
+	unsigned int pkts = 0;
+	u16 wqebb_cnt = 0;
+
+	hw_ci = hinic3_get_sq_hw_ci(txq->sq);
+	dma_rmb();
+	sw_ci = hinic3_get_sq_local_ci(txq->sq);
+
+	do {
+		tx_info = &txq->tx_info[sw_ci];
+
+		/* Did all wqebb of this wqe complete? */
+		if (hw_ci == sw_ci ||
+		    ((hw_ci - sw_ci) & txq->q_mask) < tx_info->wqebb_cnt)
+			break;
+
+		sw_ci = (sw_ci + tx_info->wqebb_cnt) & txq->q_mask;
+		net_prefetch(&txq->tx_info[sw_ci]);
+
+		wqebb_cnt += tx_info->wqebb_cnt;
+		bytes_compl += tx_info->skb->len;
+		pkts++;
+
+		hinic3_tx_unmap_skb(netdev, tx_info->skb, tx_info->dma_info);
+		napi_consume_skb(tx_info->skb, budget);
+		tx_info->skb = NULL;
+	} while (likely(pkts < HINIC3_TX_POLL_WEIGHT));
+
+	hinic3_wq_put_wqebbs(&txq->sq->wq, wqebb_cnt);
+
+	netif_subqueue_completed_wake(netdev, q_id, pkts, bytes_compl,
+				      hinic3_wq_free_wqebbs(&txq->sq->wq),
+				      txq->tx_start_thrs);
+
+	return pkts == HINIC3_TX_POLL_WEIGHT;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_tx.h

@@ -0,0 +1,163 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_TX_H_
+#define _HINIC3_TX_H_
+
+#include <linux/bitops.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/netdevice.h>
+#include <net/checksum.h>
+
+#define VXLAN_OFFLOAD_PORT_LE            cpu_to_be16(4789)
+#define TCP_HDR_DATA_OFF_UNIT_SHIFT      2
+#define TRANSPORT_OFFSET(l4_hdr, skb)    ((l4_hdr) - (skb)->data)
+
+#define HINIC3_COMPACT_WQEE_SKB_MAX_LEN  16383
+#define HINIC3_TX_POLL_WEIGHT		 64
+#define HINIC3_DEFAULT_STOP_THRS	 6
+#define HINIC3_DEFAULT_START_THRS	 24
+
+enum sq_wqe_data_format {
+	SQ_NORMAL_WQE = 0,
+};
+
+enum sq_wqe_ec_type {
+	SQ_WQE_COMPACT_TYPE  = 0,
+	SQ_WQE_EXTENDED_TYPE = 1,
+};
+
+enum sq_wqe_tasksect_len_type {
+	SQ_WQE_TASKSECT_46BITS  = 0,
+	SQ_WQE_TASKSECT_16BYTES = 1,
+};
+
+enum hinic3_tx_offload_type {
+	HINIC3_TX_OFFLOAD_TSO     = BIT(0),
+	HINIC3_TX_OFFLOAD_CSUM    = BIT(1),
+	HINIC3_TX_OFFLOAD_VLAN    = BIT(2),
+	HINIC3_TX_OFFLOAD_INVALID = BIT(3),
+	HINIC3_TX_OFFLOAD_ESP     = BIT(4),
+};
+
+#define SQ_CTRL_BUFDESC_NUM_MASK   GENMASK(26, 19)
+#define SQ_CTRL_TASKSECT_LEN_MASK  BIT(27)
+#define SQ_CTRL_DATA_FORMAT_MASK   BIT(28)
+#define SQ_CTRL_EXTENDED_MASK      BIT(30)
+#define SQ_CTRL_OWNER_MASK         BIT(31)
+#define SQ_CTRL_SET(val, member) \
+	FIELD_PREP(SQ_CTRL_##member##_MASK, val)
+
+#define SQ_CTRL_QUEUE_INFO_PLDOFF_MASK  GENMASK(9, 2)
+#define SQ_CTRL_QUEUE_INFO_UFO_MASK     BIT(10)
+#define SQ_CTRL_QUEUE_INFO_TSO_MASK     BIT(11)
+#define SQ_CTRL_QUEUE_INFO_MSS_MASK     GENMASK(26, 13)
+#define SQ_CTRL_QUEUE_INFO_UC_MASK      BIT(28)
+
+#define SQ_CTRL_QUEUE_INFO_SET(val, member) \
+	FIELD_PREP(SQ_CTRL_QUEUE_INFO_##member##_MASK, val)
+#define SQ_CTRL_QUEUE_INFO_GET(val, member) \
+	FIELD_GET(SQ_CTRL_QUEUE_INFO_##member##_MASK, le32_to_cpu(val))
+
+#define SQ_CTRL_MAX_PLDOFF  221
+
+#define SQ_TASK_INFO0_TUNNEL_FLAG_MASK  BIT(19)
+#define SQ_TASK_INFO0_INNER_L4_EN_MASK  BIT(24)
+#define SQ_TASK_INFO0_INNER_L3_EN_MASK  BIT(25)
+#define SQ_TASK_INFO0_OUT_L4_EN_MASK    BIT(27)
+#define SQ_TASK_INFO0_OUT_L3_EN_MASK    BIT(28)
+#define SQ_TASK_INFO0_SET(val, member) \
+	FIELD_PREP(SQ_TASK_INFO0_##member##_MASK, val)
+
+#define SQ_TASK_INFO3_VLAN_TAG_MASK        GENMASK(15, 0)
+#define SQ_TASK_INFO3_VLAN_TPID_MASK       GENMASK(18, 16)
+#define SQ_TASK_INFO3_VLAN_TAG_VALID_MASK  BIT(19)
+#define SQ_TASK_INFO3_SET(val, member) \
+	FIELD_PREP(SQ_TASK_INFO3_##member##_MASK, val)
+
+struct hinic3_sq_wqe_desc {
+	__le32 ctrl_len;
+	__le32 queue_info;
+	__le32 hi_addr;
+	__le32 lo_addr;
+};
+
+struct hinic3_sq_task {
+	__le32 pkt_info0;
+	__le32 ip_identify;
+	__le32 rsvd;
+	__le32 vlan_offload;
+};
+
+struct hinic3_sq_wqe_combo {
+	struct hinic3_sq_wqe_desc *ctrl_bd0;
+	struct hinic3_sq_task     *task;
+	struct hinic3_sq_bufdesc  *bds_head;
+	struct hinic3_sq_bufdesc  *bds_sec2;
+	u16                       first_bds_num;
+	u32                       wqe_type;
+	u32                       task_type;
+};
+
+struct hinic3_txq_stats {
+	u64                   packets;
+	u64                   bytes;
+	u64                   busy;
+	u64                   dropped;
+	u64                   skb_pad_err;
+	u64                   frag_len_overflow;
+	u64                   offload_cow_skb_err;
+	u64                   map_frag_err;
+	u64                   unknown_tunnel_pkt;
+	u64                   frag_size_err;
+	struct u64_stats_sync syncp;
+};
+
+struct hinic3_dma_info {
+	dma_addr_t dma;
+	u32        len;
+};
+
+struct hinic3_tx_info {
+	struct sk_buff         *skb;
+	u16                    wqebb_cnt;
+	struct hinic3_dma_info *dma_info;
+};
+
+struct hinic3_txq {
+	struct net_device       *netdev;
+	struct device           *dev;
+
+	u16                     q_id;
+	u16                     tx_stop_thrs;
+	u16                     tx_start_thrs;
+	u32                     q_mask;
+	u32                     q_depth;
+
+	struct hinic3_tx_info   *tx_info;
+	struct hinic3_io_queue  *sq;
+
+	struct hinic3_txq_stats txq_stats;
+} ____cacheline_aligned;
+
+struct hinic3_dyna_txq_res {
+	struct hinic3_tx_info  *tx_info;
+	struct hinic3_dma_info *bds;
+};
+
+int hinic3_alloc_txqs(struct net_device *netdev);
+void hinic3_free_txqs(struct net_device *netdev);
+
+int hinic3_alloc_txqs_res(struct net_device *netdev, u16 num_sq,
+			  u32 sq_depth, struct hinic3_dyna_txq_res *txqs_res);
+void hinic3_free_txqs_res(struct net_device *netdev, u16 num_sq,
+			  u32 sq_depth, struct hinic3_dyna_txq_res *txqs_res);
+int hinic3_configure_txqs(struct net_device *netdev, u16 num_sq,
+			  u32 sq_depth, struct hinic3_dyna_txq_res *txqs_res);
+
+netdev_tx_t hinic3_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
+bool hinic3_tx_poll(struct hinic3_txq *txq, int budget);
+void hinic3_flush_txqs(struct net_device *netdev);
+
+#endif

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_wq.c

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
+
+#include <linux/dma-mapping.h>
+
+#include "hinic3_hwdev.h"
+#include "hinic3_wq.h"
+
+#define WQ_MIN_DEPTH            64
+#define WQ_MAX_DEPTH            65536
+#define WQ_PAGE_ADDR_SIZE       sizeof(u64)
+#define WQ_MAX_NUM_PAGES        (HINIC3_MIN_PAGE_SIZE / WQ_PAGE_ADDR_SIZE)
+
+static int wq_init_wq_block(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq)
+{
+	struct hinic3_queue_pages *qpages = &wq->qpages;
+	int i;
+
+	if (hinic3_wq_is_0_level_cla(wq)) {
+		wq->wq_block_paddr = qpages->pages[0].align_paddr;
+		wq->wq_block_vaddr = qpages->pages[0].align_vaddr;
+
+		return 0;
+	}
+
+	if (wq->qpages.num_pages > WQ_MAX_NUM_PAGES) {
+		dev_err(hwdev->dev, "wq num_pages exceed limit: %lu\n",
+			WQ_MAX_NUM_PAGES);
+		return -EFAULT;
+	}
+
+	wq->wq_block_vaddr = dma_alloc_coherent(hwdev->dev,
+						HINIC3_MIN_PAGE_SIZE,
+						&wq->wq_block_paddr,
+						GFP_KERNEL);
+	if (!wq->wq_block_vaddr)
+		return -ENOMEM;
+
+	for (i = 0; i < qpages->num_pages; i++)
+		wq->wq_block_vaddr[i] = cpu_to_be64(qpages->pages[i].align_paddr);
+
+	return 0;
+}
+
+static int wq_alloc_pages(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq)
+{
+	int err;
+
+	err = hinic3_queue_pages_alloc(hwdev, &wq->qpages, 0);
+	if (err)
+		return err;
+
+	err = wq_init_wq_block(hwdev, wq);
+	if (err) {
+		hinic3_queue_pages_free(hwdev, &wq->qpages);
+		return err;
+	}
+
+	return 0;
+}
+
+static void wq_free_pages(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq)
+{
+	if (!hinic3_wq_is_0_level_cla(wq))
+		dma_free_coherent(hwdev->dev,
+				  HINIC3_MIN_PAGE_SIZE,
+				  wq->wq_block_vaddr,
+				  wq->wq_block_paddr);
+
+	hinic3_queue_pages_free(hwdev, &wq->qpages);
+}
+
+int hinic3_wq_create(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq,
+		     u32 q_depth, u16 wqebb_size)
+{
+	u32 wq_page_size;
+
+	if (q_depth < WQ_MIN_DEPTH || q_depth > WQ_MAX_DEPTH ||
+	    !is_power_of_2(q_depth) || !is_power_of_2(wqebb_size)) {
+		dev_err(hwdev->dev, "Invalid WQ: q_depth %u, wqebb_size %u\n",
+			q_depth, wqebb_size);
+		return -EINVAL;
+	}
+
+	wq_page_size = ALIGN(hwdev->wq_page_size, HINIC3_MIN_PAGE_SIZE);
+
+	memset(wq, 0, sizeof(*wq));
+	wq->q_depth = q_depth;
+	wq->idx_mask = q_depth - 1;
+
+	hinic3_queue_pages_init(&wq->qpages, q_depth, wq_page_size, wqebb_size);
+
+	return wq_alloc_pages(hwdev, wq);
+}
+
+void hinic3_wq_destroy(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq)
+{
+	wq_free_pages(hwdev, wq);
+}
+
+void hinic3_wq_reset(struct hinic3_wq *wq)
+{
+	struct hinic3_queue_pages *qpages = &wq->qpages;
+	u16 pg_idx;
+
+	wq->cons_idx = 0;
+	wq->prod_idx = 0;
+
+	for (pg_idx = 0; pg_idx < qpages->num_pages; pg_idx++)
+		memset(qpages->pages[pg_idx].align_vaddr, 0, qpages->page_size);
+}
+
+void hinic3_wq_get_multi_wqebbs(struct hinic3_wq *wq,
+				u16 num_wqebbs, u16 *prod_idx,
+				struct hinic3_sq_bufdesc **first_part_wqebbs,
+				struct hinic3_sq_bufdesc **second_part_wqebbs,
+				u16 *first_part_wqebbs_num)
+{
+	u32 idx, remaining;
+
+	idx = wq->prod_idx & wq->idx_mask;
+	wq->prod_idx += num_wqebbs;
+	*prod_idx = idx;
+	*first_part_wqebbs = get_q_element(&wq->qpages, idx, &remaining);
+	if (likely(remaining >= num_wqebbs)) {
+		*first_part_wqebbs_num = num_wqebbs;
+		*second_part_wqebbs = NULL;
+	} else {
+		*first_part_wqebbs_num = remaining;
+		idx += remaining;
+		*second_part_wqebbs = get_q_element(&wq->qpages, idx, NULL);
+	}
+}
+
+bool hinic3_wq_is_0_level_cla(const struct hinic3_wq *wq)
+{
+	return wq->qpages.num_pages == 1;
+}

linux-7.2.3/drivers/net/ethernet/huawei/hinic3/hinic3_wq.h

@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */
+
+#ifndef _HINIC3_WQ_H_
+#define _HINIC3_WQ_H_
+
+#include <linux/io.h>
+
+#include "hinic3_queue_common.h"
+
+struct hinic3_sq_bufdesc {
+	/* 31-bits Length, L2NIC only uses length[17:0] */
+	__le32 len;
+	__le32 rsvd;
+	__le32 hi_addr;
+	__le32 lo_addr;
+};
+
+/* Work queue is used to submit elements (tx, rx, cmd) to hw.
+ * Driver is the producer that advances prod_idx. cons_idx is advanced when
+ * HW reports completions of previously submitted elements.
+ */
+struct hinic3_wq {
+	struct hinic3_queue_pages qpages;
+	/* Unmasked producer/consumer indices that are advanced to natural
+	 * integer overflow regardless of queue depth.
+	 */
+	u16                       cons_idx;
+	u16                       prod_idx;
+
+	u32                       q_depth;
+	u16                       idx_mask;
+
+	/* Work Queue (logical WQEBB array) is mapped to hw via Chip Logical
+	 * Address (CLA) using 1 of 2 levels:
+	 *     level 0 - direct mapping of single wq page
+	 *     level 1 - indirect mapping of multiple pages via additional page
+	 *               table.
+	 * When wq uses level 1, wq_block will hold the allocated indirection
+	 * table.
+	 */
+	dma_addr_t                wq_block_paddr;
+	__be64                    *wq_block_vaddr;
+} ____cacheline_aligned;
+
+/* Get number of elements in work queue that are in-use. */
+static inline u16 hinic3_wq_get_used(const struct hinic3_wq *wq)
+{
+	return READ_ONCE(wq->prod_idx) - READ_ONCE(wq->cons_idx);
+}
+
+static inline u16 hinic3_wq_free_wqebbs(struct hinic3_wq *wq)
+{
+	/* Don't allow queue to become completely full, report (free - 1). */
+	return wq->q_depth - hinic3_wq_get_used(wq) - 1;
+}
+
+static inline void *hinic3_wq_get_one_wqebb(struct hinic3_wq *wq, u16 *pi)
+{
+	*pi = wq->prod_idx & wq->idx_mask;
+	wq->prod_idx++;
+
+	return get_q_element(&wq->qpages, *pi, NULL);
+}
+
+static inline void hinic3_wq_put_wqebbs(struct hinic3_wq *wq, u16 num_wqebbs)
+{
+	wq->cons_idx += num_wqebbs;
+}
+
+static inline u64 hinic3_wq_get_first_wqe_page_addr(const struct hinic3_wq *wq)
+{
+	return wq->qpages.pages[0].align_paddr;
+}
+
+int hinic3_wq_create(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq,
+		     u32 q_depth, u16 wqebb_size);
+void hinic3_wq_destroy(struct hinic3_hwdev *hwdev, struct hinic3_wq *wq);
+void hinic3_wq_reset(struct hinic3_wq *wq);
+void hinic3_wq_get_multi_wqebbs(struct hinic3_wq *wq,
+				u16 num_wqebbs, u16 *prod_idx,
+				struct hinic3_sq_bufdesc **first_part_wqebbs,
+				struct hinic3_sq_bufdesc **second_part_wqebbs,
+				u16 *first_part_wqebbs_num);
+bool hinic3_wq_is_0_level_cla(const struct hinic3_wq *wq);
+
+#endif