Resguardo inicial

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h

@@ -0,0 +1,136 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2016-2017 Hisilicon Limited. */
+
+#ifndef __HCLGEVF_CMD_H
+#define __HCLGEVF_CMD_H
+#include <linux/io.h>
+#include <linux/types.h>
+#include "hnae3.h"
+#include "hclge_comm_cmd.h"
+
+#define HCLGEVF_CMDQ_RX_INVLD_B		0
+#define HCLGEVF_CMDQ_RX_OUTVLD_B	1
+
+struct hclgevf_hw;
+struct hclgevf_dev;
+
+#define HCLGEVF_SYNC_RX_RING_HEAD_EN_B	4
+
+#define HCLGEVF_TQP_REG_OFFSET		0x80000
+#define HCLGEVF_TQP_REG_SIZE		0x200
+
+#define HCLGEVF_TQP_MAX_SIZE_DEV_V2	1024
+#define HCLGEVF_TQP_EXT_REG_OFFSET	0x100
+
+struct hclgevf_tqp_map {
+	__le16 tqp_id;	/* Absolute tqp id for in this pf */
+	u8 tqp_vf; /* VF id */
+#define HCLGEVF_TQP_MAP_TYPE_PF		0
+#define HCLGEVF_TQP_MAP_TYPE_VF		1
+#define HCLGEVF_TQP_MAP_TYPE_B		0
+#define HCLGEVF_TQP_MAP_EN_B		1
+	u8 tqp_flag;	/* Indicate it's pf or vf tqp */
+	__le16 tqp_vid; /* Virtual id in this pf/vf */
+	u8 rsv[18];
+};
+
+#define HCLGEVF_VECTOR_ELEMENTS_PER_CMD	10
+
+enum hclgevf_int_type {
+	HCLGEVF_INT_TX = 0,
+	HCLGEVF_INT_RX,
+	HCLGEVF_INT_EVENT,
+};
+
+struct hclgevf_ctrl_vector_chain {
+	u8 int_vector_id;
+	u8 int_cause_num;
+#define HCLGEVF_INT_TYPE_S	0
+#define HCLGEVF_INT_TYPE_M	0x3
+#define HCLGEVF_TQP_ID_S	2
+#define HCLGEVF_TQP_ID_M	(0x3fff << HCLGEVF_TQP_ID_S)
+	__le16 tqp_type_and_id[HCLGEVF_VECTOR_ELEMENTS_PER_CMD];
+	u8 vfid;
+	u8 resv;
+};
+
+#define HCLGEVF_MSIX_OFT_ROCEE_S       0
+#define HCLGEVF_MSIX_OFT_ROCEE_M       (0xffff << HCLGEVF_MSIX_OFT_ROCEE_S)
+#define HCLGEVF_VEC_NUM_S              0
+#define HCLGEVF_VEC_NUM_M              (0xff << HCLGEVF_VEC_NUM_S)
+struct hclgevf_query_res_cmd {
+	__le16 tqp_num;
+	__le16 reserved;
+	__le16 msixcap_localid_ba_nic;
+	__le16 msixcap_localid_ba_rocee;
+	__le16 vf_intr_vector_number;
+	__le16 rsv[7];
+};
+
+#define HCLGEVF_GRO_EN_B               0
+struct hclgevf_cfg_gro_status_cmd {
+	u8 gro_en;
+	u8 rsv[23];
+};
+
+#define HCLGEVF_LINK_STS_B	0
+#define HCLGEVF_LINK_STATUS	BIT(HCLGEVF_LINK_STS_B)
+struct hclgevf_link_status_cmd {
+	u8 status;
+	u8 rsv[23];
+};
+
+#define HCLGEVF_RING_ID_MASK	0x3ff
+#define HCLGEVF_TQP_ENABLE_B	0
+
+struct hclgevf_cfg_com_tqp_queue_cmd {
+	__le16 tqp_id;
+	__le16 stream_id;
+	u8 enable;
+	u8 rsv[19];
+};
+
+struct hclgevf_cfg_tx_queue_pointer_cmd {
+	__le16 tqp_id;
+	__le16 tx_tail;
+	__le16 tx_head;
+	__le16 fbd_num;
+	__le16 ring_offset;
+	u8 rsv[14];
+};
+
+/* this bit indicates that the driver is ready for hardware reset */
+#define HCLGEVF_NIC_SW_RST_RDY_B	16
+#define HCLGEVF_NIC_SW_RST_RDY		BIT(HCLGEVF_NIC_SW_RST_RDY_B)
+
+#define HCLGEVF_NIC_CMQ_DESC_NUM	1024
+#define HCLGEVF_NIC_CMQ_DESC_NUM_S	3
+
+#define HCLGEVF_QUERY_DEV_SPECS_BD_NUM		4
+
+#define hclgevf_cmd_setup_basic_desc(desc, opcode, is_read) \
+	hclge_comm_cmd_setup_basic_desc(desc, opcode, is_read)
+
+struct hclgevf_dev_specs_0_cmd {
+	__le32 rsv0;
+	__le32 mac_entry_num;
+	__le32 mng_entry_num;
+	__le16 rss_ind_tbl_size;
+	__le16 rss_key_size;
+	__le16 int_ql_max;
+	u8 max_non_tso_bd_num;
+	u8 rsv1[5];
+};
+
+#define HCLGEVF_DEF_MAX_INT_GL		0x1FE0U
+
+struct hclgevf_dev_specs_1_cmd {
+	__le16 max_frm_size;
+	__le16 rsv0;
+	__le16 max_int_gl;
+	u8 rsv1[18];
+};
+
+int hclgevf_cmd_send(struct hclgevf_hw *hw, struct hclge_desc *desc, int num);
+void hclgevf_arq_init(struct hclgevf_dev *hdev);
+#endif

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.c

@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2021 Hisilicon Limited. */
+
+#include <net/devlink.h>
+
+#include "hclgevf_devlink.h"
+
+static int hclgevf_devlink_info_get(struct devlink *devlink,
+				    struct devlink_info_req *req,
+				    struct netlink_ext_ack *extack)
+{
+#define	HCLGEVF_DEVLINK_FW_STRING_LEN	32
+	struct hclgevf_devlink_priv *priv = devlink_priv(devlink);
+	char version_str[HCLGEVF_DEVLINK_FW_STRING_LEN];
+	struct hclgevf_dev *hdev = priv->hdev;
+
+	snprintf(version_str, sizeof(version_str), "%lu.%lu.%lu.%lu",
+		 hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE3_MASK,
+				 HNAE3_FW_VERSION_BYTE3_SHIFT),
+		 hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE2_MASK,
+				 HNAE3_FW_VERSION_BYTE2_SHIFT),
+		 hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE1_MASK,
+				 HNAE3_FW_VERSION_BYTE1_SHIFT),
+		 hnae3_get_field(hdev->fw_version, HNAE3_FW_VERSION_BYTE0_MASK,
+				 HNAE3_FW_VERSION_BYTE0_SHIFT));
+
+	return devlink_info_version_running_put(req,
+						DEVLINK_INFO_VERSION_GENERIC_FW,
+						version_str);
+}
+
+static int hclgevf_devlink_reload_down(struct devlink *devlink,
+				       bool netns_change,
+				       enum devlink_reload_action action,
+				       enum devlink_reload_limit limit,
+				       struct netlink_ext_ack *extack)
+{
+	struct hclgevf_devlink_priv *priv = devlink_priv(devlink);
+	struct hclgevf_dev *hdev = priv->hdev;
+	struct hnae3_handle *h = &hdev->nic;
+	struct pci_dev *pdev = hdev->pdev;
+	int ret;
+
+	if (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state)) {
+		dev_err(&pdev->dev, "reset is handling\n");
+		return -EBUSY;
+	}
+
+	switch (action) {
+	case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
+		rtnl_lock();
+		ret = hdev->nic_client->ops->reset_notify(h, HNAE3_DOWN_CLIENT);
+		if (ret) {
+			rtnl_unlock();
+			return ret;
+		}
+
+		ret = hdev->nic_client->ops->reset_notify(h,
+							  HNAE3_UNINIT_CLIENT);
+		rtnl_unlock();
+		return ret;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int hclgevf_devlink_reload_up(struct devlink *devlink,
+				     enum devlink_reload_action action,
+				     enum devlink_reload_limit limit,
+				     u32 *actions_performed,
+				     struct netlink_ext_ack *extack)
+{
+	struct hclgevf_devlink_priv *priv = devlink_priv(devlink);
+	struct hclgevf_dev *hdev = priv->hdev;
+	struct hnae3_handle *h = &hdev->nic;
+	int ret;
+
+	*actions_performed = BIT(action);
+	switch (action) {
+	case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
+		rtnl_lock();
+		ret = hdev->nic_client->ops->reset_notify(h, HNAE3_INIT_CLIENT);
+		if (ret) {
+			rtnl_unlock();
+			return ret;
+		}
+
+		ret = hdev->nic_client->ops->reset_notify(h, HNAE3_UP_CLIENT);
+		rtnl_unlock();
+		return ret;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static const struct devlink_ops hclgevf_devlink_ops = {
+	.info_get = hclgevf_devlink_info_get,
+	.reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT),
+	.reload_down = hclgevf_devlink_reload_down,
+	.reload_up = hclgevf_devlink_reload_up,
+};
+
+int hclgevf_devlink_init(struct hclgevf_dev *hdev)
+{
+	struct pci_dev *pdev = hdev->pdev;
+	struct hclgevf_devlink_priv *priv;
+	struct devlink *devlink;
+
+	devlink =
+		devlink_alloc(&hclgevf_devlink_ops,
+			      sizeof(struct hclgevf_devlink_priv), &pdev->dev);
+	if (!devlink)
+		return -ENOMEM;
+
+	priv = devlink_priv(devlink);
+	priv->hdev = hdev;
+	hdev->devlink = devlink;
+
+	devlink_register(devlink);
+	return 0;
+}
+
+void hclgevf_devlink_uninit(struct hclgevf_dev *hdev)
+{
+	struct devlink *devlink = hdev->devlink;
+
+	devlink_unregister(devlink);
+
+	devlink_free(devlink);
+}

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_devlink.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2021 Hisilicon Limited. */
+
+#ifndef __HCLGEVF_DEVLINK_H
+#define __HCLGEVF_DEVLINK_H
+
+#include "hclgevf_main.h"
+
+struct hclgevf_devlink_priv {
+	struct hclgevf_dev *hdev;
+};
+
+int hclgevf_devlink_init(struct hclgevf_dev *hdev);
+void hclgevf_devlink_uninit(struct hclgevf_dev *hdev);
+#endif

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h

@@ -0,0 +1,300 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2016-2017 Hisilicon Limited. */
+
+#ifndef __HCLGEVF_MAIN_H
+#define __HCLGEVF_MAIN_H
+#include <linux/fs.h>
+#include <linux/if_vlan.h>
+#include <linux/types.h>
+#include <net/devlink.h>
+#include "hclge_mbx.h"
+#include "hclgevf_cmd.h"
+#include "hnae3.h"
+#include "hclge_comm_rss.h"
+#include "hclge_comm_tqp_stats.h"
+
+#define HCLGEVF_MOD_VERSION "1.0"
+#define HCLGEVF_DRIVER_NAME "hclgevf"
+
+#define HCLGEVF_MAX_VLAN_ID	4095
+#define HCLGEVF_MISC_VECTOR_NUM		0
+
+#define HCLGEVF_INVALID_VPORT		0xffff
+#define HCLGEVF_GENERAL_TASK_INTERVAL	  5
+#define HCLGEVF_KEEP_ALIVE_TASK_INTERVAL  2
+
+/* This number in actual depends upon the total number of VFs
+ * created by physical function. But the maximum number of
+ * possible vector-per-VF is {VFn(1-32), VECTn(32 + 1)}.
+ */
+#define HCLGEVF_MAX_VF_VECTOR_NUM	(32 + 1)
+
+#define HCLGEVF_VECTOR_REG_BASE		0x20000
+#define HCLGEVF_MISC_VECTOR_REG_BASE	0x20400
+#define HCLGEVF_VECTOR_REG_OFFSET	0x4
+#define HCLGEVF_VECTOR_VF_OFFSET		0x100000
+
+/* bar registers for common func */
+#define HCLGEVF_GRO_EN_REG			0x28000
+#define HCLGEVF_RXD_ADV_LAYOUT_EN_REG		0x28008
+
+/* bar registers for rcb */
+#define HCLGEVF_RING_RX_ADDR_L_REG		0x80000
+#define HCLGEVF_RING_RX_ADDR_H_REG		0x80004
+#define HCLGEVF_RING_RX_BD_NUM_REG		0x80008
+#define HCLGEVF_RING_RX_BD_LENGTH_REG		0x8000C
+#define HCLGEVF_RING_RX_MERGE_EN_REG		0x80014
+#define HCLGEVF_RING_RX_TAIL_REG		0x80018
+#define HCLGEVF_RING_RX_HEAD_REG		0x8001C
+#define HCLGEVF_RING_RX_FBD_NUM_REG		0x80020
+#define HCLGEVF_RING_RX_OFFSET_REG		0x80024
+#define HCLGEVF_RING_RX_FBD_OFFSET_REG		0x80028
+#define HCLGEVF_RING_RX_STASH_REG		0x80030
+#define HCLGEVF_RING_RX_BD_ERR_REG		0x80034
+#define HCLGEVF_RING_TX_ADDR_L_REG		0x80040
+#define HCLGEVF_RING_TX_ADDR_H_REG		0x80044
+#define HCLGEVF_RING_TX_BD_NUM_REG		0x80048
+#define HCLGEVF_RING_TX_PRIORITY_REG		0x8004C
+#define HCLGEVF_RING_TX_TC_REG			0x80050
+#define HCLGEVF_RING_TX_MERGE_EN_REG		0x80054
+#define HCLGEVF_RING_TX_TAIL_REG		0x80058
+#define HCLGEVF_RING_TX_HEAD_REG		0x8005C
+#define HCLGEVF_RING_TX_FBD_NUM_REG		0x80060
+#define HCLGEVF_RING_TX_OFFSET_REG		0x80064
+#define HCLGEVF_RING_TX_EBD_NUM_REG		0x80068
+#define HCLGEVF_RING_TX_EBD_OFFSET_REG		0x80070
+#define HCLGEVF_RING_TX_BD_ERR_REG		0x80074
+#define HCLGEVF_RING_EN_REG			0x80090
+
+/* bar registers for tqp interrupt */
+#define HCLGEVF_TQP_INTR_CTRL_REG		0x20000
+#define HCLGEVF_TQP_INTR_GL0_REG		0x20100
+#define HCLGEVF_TQP_INTR_GL1_REG		0x20200
+#define HCLGEVF_TQP_INTR_GL2_REG		0x20300
+#define HCLGEVF_TQP_INTR_RL_REG			0x20900
+
+/* CMDQ register bits for RX event(=MBX event) */
+#define HCLGEVF_VECTOR0_RX_CMDQ_INT_B	1
+/* RST register bits for RESET event */
+#define HCLGEVF_VECTOR0_RST_INT_B	2
+
+#define HCLGEVF_TQP_RESET_TRY_TIMES	10
+/* Reset related Registers */
+#define HCLGEVF_RST_ING			0x20C00
+#define HCLGEVF_FUN_RST_ING_BIT		BIT(0)
+#define HCLGEVF_GLOBAL_RST_ING_BIT	BIT(5)
+#define HCLGEVF_CORE_RST_ING_BIT	BIT(6)
+#define HCLGEVF_IMP_RST_ING_BIT		BIT(7)
+#define HCLGEVF_RST_ING_BITS \
+	(HCLGEVF_FUN_RST_ING_BIT | HCLGEVF_GLOBAL_RST_ING_BIT | \
+	 HCLGEVF_CORE_RST_ING_BIT | HCLGEVF_IMP_RST_ING_BIT)
+
+#define HCLGEVF_VF_RST_ING		0x07008
+#define HCLGEVF_VF_RST_ING_BIT		BIT(16)
+
+#define HCLGEVF_WAIT_RESET_DONE		100
+
+#define HCLGEVF_RSS_IND_TBL_SIZE		512
+
+#define HCLGEVF_TQP_MEM_SIZE		0x10000
+#define HCLGEVF_MEM_BAR			4
+/* in the bar4, the first half is for roce, and the second half is for nic */
+#define HCLGEVF_NIC_MEM_OFFSET(hdev)	\
+	(pci_resource_len((hdev)->pdev, HCLGEVF_MEM_BAR) >> 1)
+#define HCLGEVF_TQP_MEM_OFFSET(hdev, i)		\
+	(HCLGEVF_NIC_MEM_OFFSET(hdev) + HCLGEVF_TQP_MEM_SIZE * (i))
+
+#define HCLGEVF_MAC_MAX_FRAME		9728
+
+#define HCLGEVF_STATS_TIMER_INTERVAL	36U
+
+#define hclgevf_read_dev(a, reg) \
+	hclge_comm_read_reg((a)->hw.io_base, reg)
+#define hclgevf_write_dev(a, reg, value) \
+	hclge_comm_write_reg((a)->hw.io_base, reg, value)
+
+enum hclgevf_evt_cause {
+	HCLGEVF_VECTOR0_EVENT_RST,
+	HCLGEVF_VECTOR0_EVENT_MBX,
+	HCLGEVF_VECTOR0_EVENT_OTHER,
+};
+
+/* states of hclgevf device & tasks */
+enum hclgevf_states {
+	/* device states */
+	HCLGEVF_STATE_DOWN,
+	HCLGEVF_STATE_DISABLED,
+	HCLGEVF_STATE_IRQ_INITED,
+	HCLGEVF_STATE_REMOVING,
+	HCLGEVF_STATE_NIC_REGISTERED,
+	HCLGEVF_STATE_ROCE_REGISTERED,
+	HCLGEVF_STATE_SERVICE_INITED,
+	/* task states */
+	HCLGEVF_STATE_RST_SERVICE_SCHED,
+	HCLGEVF_STATE_RST_HANDLING,
+	HCLGEVF_STATE_MBX_SERVICE_SCHED,
+	HCLGEVF_STATE_MBX_HANDLING,
+	HCLGEVF_STATE_LINK_UPDATING,
+	HCLGEVF_STATE_PROMISC_CHANGED,
+	HCLGEVF_STATE_RST_FAIL,
+	HCLGEVF_STATE_PF_PUSH_LINK_STATUS,
+};
+
+struct hclgevf_mac {
+	u8 media_type;
+	u8 module_type;
+	u8 mac_addr[ETH_ALEN];
+	int link;
+	u8 duplex;
+	u32 speed;
+	u64 supported;
+	u64 advertising;
+};
+
+struct hclgevf_hw {
+	struct hclge_comm_hw hw;
+	int num_vec;
+	struct hclgevf_mac mac;
+};
+
+struct hclgevf_cfg {
+	u8 tc_num;
+	u16 tqp_desc_num;
+	u16 rx_buf_len;
+	u8 phy_addr;
+	u8 media_type;
+	u8 mac_addr[ETH_ALEN];
+	u32 numa_node_map;
+};
+
+struct hclgevf_misc_vector {
+	u8 __iomem *addr;
+	int vector_irq;
+	char name[HNAE3_INT_NAME_LEN];
+};
+
+struct hclgevf_rst_stats {
+	u32 rst_cnt;			/* the number of reset */
+	u32 vf_func_rst_cnt;		/* the number of VF function reset */
+	u32 flr_rst_cnt;		/* the number of FLR */
+	u32 vf_rst_cnt;			/* the number of VF reset */
+	u32 rst_done_cnt;		/* the number of reset completed */
+	u32 hw_rst_done_cnt;		/* the number of HW reset completed */
+	u32 rst_fail_cnt;		/* the number of VF reset fail */
+};
+
+enum HCLGEVF_MAC_ADDR_TYPE {
+	HCLGEVF_MAC_ADDR_UC,
+	HCLGEVF_MAC_ADDR_MC
+};
+
+enum HCLGEVF_MAC_NODE_STATE {
+	HCLGEVF_MAC_TO_ADD,
+	HCLGEVF_MAC_TO_DEL,
+	HCLGEVF_MAC_ACTIVE
+};
+
+struct hclgevf_mac_addr_node {
+	struct list_head node;
+	enum HCLGEVF_MAC_NODE_STATE state;
+	u8 mac_addr[ETH_ALEN];
+};
+
+struct hclgevf_mac_table_cfg {
+	spinlock_t mac_list_lock; /* protect mac address need to add/detele */
+	struct list_head uc_mac_list;
+	struct list_head mc_mac_list;
+};
+
+struct hclgevf_dev {
+	struct pci_dev *pdev;
+	struct hnae3_ae_dev *ae_dev;
+	struct hclgevf_hw hw;
+	struct hclgevf_misc_vector misc_vector;
+	struct hclge_comm_rss_cfg rss_cfg;
+	unsigned long state;
+	unsigned long flr_state;
+	unsigned long default_reset_request;
+	unsigned long last_reset_time;
+	enum hnae3_reset_type reset_level;
+	unsigned long reset_pending;
+	enum hnae3_reset_type reset_type;
+	struct timer_list reset_timer;
+
+#define HCLGEVF_RESET_REQUESTED		0
+#define HCLGEVF_RESET_PENDING		1
+	unsigned long reset_state;	/* requested, pending */
+	struct hclgevf_rst_stats rst_stats;
+	u32 reset_attempts;
+	struct semaphore reset_sem;	/* protect reset process */
+
+	u32 fw_version;
+	u16 mbx_api_version;
+	u16 num_tqps;		/* num task queue pairs of this VF */
+
+	u16 alloc_rss_size;	/* allocated RSS task queue */
+	u16 rss_size_max;	/* HW defined max RSS task queue */
+
+	u16 num_alloc_vport;	/* num vports this driver supports */
+	nodemask_t numa_node_mask;
+	u16 rx_buf_len;
+	u16 num_tx_desc;	/* desc num of per tx queue */
+	u16 num_rx_desc;	/* desc num of per rx queue */
+	u8 hw_tc_map;
+	u8 has_pf_mac;
+
+	u16 num_msi;
+	u16 num_msi_left;
+	u16 num_msi_used;
+	u16 num_nic_msix;	/* Num of nic vectors for this VF */
+	u16 num_roce_msix;	/* Num of roce vectors for this VF */
+	u16 roce_base_msix_offset;
+	u16 *vector_status;
+	int *vector_irq;
+
+	bool gro_en;
+	bool rxvtag_strip_en;
+
+	unsigned long vlan_del_fail_bmap[BITS_TO_LONGS(VLAN_N_VID)];
+
+	struct hclgevf_mac_table_cfg mac_table;
+
+	struct hclgevf_mbx_resp_status mbx_resp; /* mailbox response */
+	struct hclgevf_mbx_arq_ring arq; /* mailbox async rx queue */
+
+	struct delayed_work service_task;
+
+	struct hclge_comm_tqp *htqp;
+
+	struct hnae3_handle nic;
+	struct hnae3_handle roce;
+
+	struct hnae3_client *nic_client;
+	struct hnae3_client *roce_client;
+	u32 flag;
+	unsigned long serv_processed_cnt;
+	unsigned long last_serv_processed;
+
+	struct devlink *devlink;
+};
+
+static inline bool hclgevf_is_reset_pending(struct hclgevf_dev *hdev)
+{
+	return !!hdev->reset_pending;
+}
+
+int hclgevf_send_mbx_msg(struct hclgevf_dev *hdev,
+			 struct hclge_vf_to_pf_msg *send_msg, bool need_resp,
+			 u8 *resp_data, u16 resp_len);
+void hclgevf_mbx_handler(struct hclgevf_dev *hdev);
+void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev);
+
+void hclgevf_update_link_status(struct hclgevf_dev *hdev, int link_state);
+void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed,
+				 u8 duplex);
+void hclgevf_reset_task_schedule(struct hclgevf_dev *hdev);
+void hclgevf_mbx_task_schedule(struct hclgevf_dev *hdev);
+void hclgevf_update_port_base_vlan_info(struct hclgevf_dev *hdev, u16 state,
+			struct hclge_mbx_port_base_vlan *port_base_vlan);
+struct hclgevf_dev *hclgevf_ae_get_hdev(struct hnae3_handle *handle);
+#endif

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c

@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2016-2017 Hisilicon Limited.
+
+#include "hclge_mbx.h"
+#include "hclgevf_main.h"
+#include "hnae3.h"
+
+#define CREATE_TRACE_POINTS
+#include "hclgevf_trace.h"
+
+static int hclgevf_resp_to_errno(u16 resp_code)
+{
+	return resp_code ? -resp_code : 0;
+}
+
+#define HCLGEVF_MBX_MATCH_ID_START	1
+static void hclgevf_reset_mbx_resp_status(struct hclgevf_dev *hdev)
+{
+	/* this function should be called with mbx_resp.mbx_mutex held
+	 * to protect the received_response from race condition
+	 */
+	hdev->mbx_resp.received_resp  = false;
+	hdev->mbx_resp.origin_mbx_msg = 0;
+	hdev->mbx_resp.resp_status    = 0;
+	hdev->mbx_resp.match_id++;
+	/* Update match_id and ensure the value of match_id is not zero */
+	if (hdev->mbx_resp.match_id == 0)
+		hdev->mbx_resp.match_id = HCLGEVF_MBX_MATCH_ID_START;
+	memset(hdev->mbx_resp.additional_info, 0, HCLGE_MBX_MAX_RESP_DATA_SIZE);
+}
+
+/* hclgevf_get_mbx_resp: used to get a response from PF after VF sends a mailbox
+ * message to PF.
+ * @hdev: pointer to struct hclgevf_dev
+ * @code0: the message opcode VF send to PF.
+ * @code1: the message sub-opcode VF send to PF.
+ * @resp_data: pointer to store response data from PF to VF.
+ * @resp_len: the length of resp_data from PF to VF.
+ */
+static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1,
+				u8 *resp_data, u16 resp_len)
+{
+#define HCLGEVF_MAX_TRY_TIMES	500
+#define HCLGEVF_SLEEP_USECOND	1000
+	struct hclgevf_mbx_resp_status *mbx_resp;
+	u16 r_code0, r_code1;
+	int i = 0;
+
+	if (resp_len > HCLGE_MBX_MAX_RESP_DATA_SIZE) {
+		dev_err(&hdev->pdev->dev,
+			"VF mbx response len(=%u) exceeds maximum(=%u)\n",
+			resp_len,
+			HCLGE_MBX_MAX_RESP_DATA_SIZE);
+		return -EINVAL;
+	}
+
+	while ((!hdev->mbx_resp.received_resp) && (i < HCLGEVF_MAX_TRY_TIMES)) {
+		if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE,
+			     &hdev->hw.hw.comm_state))
+			return -EIO;
+
+		usleep_range(HCLGEVF_SLEEP_USECOND, HCLGEVF_SLEEP_USECOND * 2);
+		i++;
+	}
+
+	/* ensure additional_info will be seen after received_resp */
+	smp_rmb();
+
+	if (i >= HCLGEVF_MAX_TRY_TIMES) {
+		dev_err(&hdev->pdev->dev,
+			"VF could not get mbx(%u,%u) resp(=%d) from PF in %d tries\n",
+			code0, code1, hdev->mbx_resp.received_resp, i);
+		return -EIO;
+	}
+
+	mbx_resp = &hdev->mbx_resp;
+	r_code0 = (u16)(mbx_resp->origin_mbx_msg >> 16);
+	r_code1 = (u16)(mbx_resp->origin_mbx_msg & 0xff);
+
+	if (mbx_resp->resp_status)
+		return mbx_resp->resp_status;
+
+	if (resp_data)
+		memcpy(resp_data, &mbx_resp->additional_info[0], resp_len);
+
+	hclgevf_reset_mbx_resp_status(hdev);
+
+	if (!(r_code0 == code0 && r_code1 == code1 && !mbx_resp->resp_status)) {
+		dev_err(&hdev->pdev->dev,
+			"VF could not match resp code(code0=%u,code1=%u), %d\n",
+			code0, code1, mbx_resp->resp_status);
+		dev_err(&hdev->pdev->dev,
+			"VF could not match resp r_code(r_code0=%u,r_code1=%u)\n",
+			r_code0, r_code1);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int hclgevf_send_mbx_msg(struct hclgevf_dev *hdev,
+			 struct hclge_vf_to_pf_msg *send_msg, bool need_resp,
+			 u8 *resp_data, u16 resp_len)
+{
+	struct hclge_mbx_vf_to_pf_cmd *req;
+	struct hclge_desc desc;
+	int status;
+
+	req = (struct hclge_mbx_vf_to_pf_cmd *)desc.data;
+
+	if (!send_msg) {
+		dev_err(&hdev->pdev->dev,
+			"failed to send mbx, msg is NULL\n");
+		return -EINVAL;
+	}
+
+	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_VF_TO_PF, false);
+	if (need_resp)
+		hnae3_set_bit(req->mbx_need_resp, HCLGE_MBX_NEED_RESP_B, 1);
+
+	memcpy(&req->msg, send_msg, sizeof(struct hclge_vf_to_pf_msg));
+
+	if (test_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state))
+		trace_hclge_vf_mbx_send(hdev, req);
+
+	/* synchronous send */
+	if (need_resp) {
+		mutex_lock(&hdev->mbx_resp.mbx_mutex);
+		hclgevf_reset_mbx_resp_status(hdev);
+		req->match_id = cpu_to_le16(hdev->mbx_resp.match_id);
+		status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
+		if (status) {
+			dev_err(&hdev->pdev->dev,
+				"VF failed(=%d) to send mbx message to PF\n",
+				status);
+			mutex_unlock(&hdev->mbx_resp.mbx_mutex);
+			return status;
+		}
+
+		status = hclgevf_get_mbx_resp(hdev, send_msg->code,
+					      send_msg->subcode, resp_data,
+					      resp_len);
+		mutex_unlock(&hdev->mbx_resp.mbx_mutex);
+	} else {
+		/* asynchronous send */
+		status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
+		if (status) {
+			dev_err(&hdev->pdev->dev,
+				"VF failed(=%d) to send mbx message to PF\n",
+				status);
+			return status;
+		}
+	}
+
+	return status;
+}
+
+static bool hclgevf_cmd_crq_empty(struct hclgevf_hw *hw)
+{
+	u32 tail = hclgevf_read_dev(hw, HCLGE_COMM_NIC_CRQ_TAIL_REG);
+
+	return tail == (u32)hw->hw.cmq.crq.next_to_use;
+}
+
+static void hclgevf_handle_mbx_response(struct hclgevf_dev *hdev,
+					struct hclge_mbx_pf_to_vf_cmd *req)
+{
+	u16 vf_mbx_msg_subcode = le16_to_cpu(req->msg.vf_mbx_msg_subcode);
+	u16 vf_mbx_msg_code = le16_to_cpu(req->msg.vf_mbx_msg_code);
+	struct hclgevf_mbx_resp_status *resp = &hdev->mbx_resp;
+	u16 resp_status = le16_to_cpu(req->msg.resp_status);
+	u16 match_id = le16_to_cpu(req->match_id);
+
+	if (resp->received_resp)
+		dev_warn(&hdev->pdev->dev,
+			"VF mbx resp flag not clear(%u)\n",
+			 vf_mbx_msg_code);
+
+	resp->origin_mbx_msg = (vf_mbx_msg_code << 16);
+	resp->origin_mbx_msg |= vf_mbx_msg_subcode;
+	resp->resp_status = hclgevf_resp_to_errno(resp_status);
+	memcpy(resp->additional_info, req->msg.resp_data,
+	       HCLGE_MBX_MAX_RESP_DATA_SIZE * sizeof(u8));
+
+	/* ensure additional_info will be seen before setting received_resp */
+	smp_wmb();
+
+	if (match_id) {
+		/* If match_id is not zero, it means PF support match_id.
+		 * if the match_id is right, VF get the right response, or
+		 * ignore the response. and driver will clear hdev->mbx_resp
+		 * when send next message which need response.
+		 */
+		if (match_id == resp->match_id)
+			resp->received_resp = true;
+	} else {
+		resp->received_resp = true;
+	}
+}
+
+static void hclgevf_handle_mbx_msg(struct hclgevf_dev *hdev,
+				   struct hclge_mbx_pf_to_vf_cmd *req)
+{
+	/* we will drop the async msg if we find ARQ as full
+	 * and continue with next message
+	 */
+	if (atomic_read(&hdev->arq.count) >=
+	    HCLGE_MBX_MAX_ARQ_MSG_NUM) {
+		dev_warn(&hdev->pdev->dev,
+			 "Async Q full, dropping msg(%u)\n",
+			 le16_to_cpu(req->msg.code));
+		return;
+	}
+
+	/* tail the async message in arq */
+	memcpy(hdev->arq.msg_q[hdev->arq.tail], &req->msg,
+	       HCLGE_MBX_MAX_ARQ_MSG_SIZE * sizeof(u16));
+	hclge_mbx_tail_ptr_move_arq(hdev->arq);
+	atomic_inc(&hdev->arq.count);
+
+	hclgevf_mbx_task_schedule(hdev);
+}
+
+void hclgevf_mbx_handler(struct hclgevf_dev *hdev)
+{
+	struct hclge_mbx_pf_to_vf_cmd *req;
+	struct hclge_comm_cmq_ring *crq;
+	struct hclge_desc *desc;
+	u16 flag;
+	u16 code;
+
+	crq = &hdev->hw.hw.cmq.crq;
+
+	while (!hclgevf_cmd_crq_empty(&hdev->hw)) {
+		if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE,
+			     &hdev->hw.hw.comm_state)) {
+			dev_info(&hdev->pdev->dev, "vf crq need init\n");
+			return;
+		}
+
+		desc = &crq->desc[crq->next_to_use];
+		req = (struct hclge_mbx_pf_to_vf_cmd *)desc->data;
+
+		flag = le16_to_cpu(crq->desc[crq->next_to_use].flag);
+		code = le16_to_cpu(req->msg.code);
+		if (unlikely(!hnae3_get_bit(flag, HCLGEVF_CMDQ_RX_OUTVLD_B))) {
+			dev_warn(&hdev->pdev->dev,
+				 "dropped invalid mailbox message, code = %u\n",
+				 code);
+
+			/* dropping/not processing this invalid message */
+			crq->desc[crq->next_to_use].flag = 0;
+			hclge_mbx_ring_ptr_move_crq(crq);
+			continue;
+		}
+
+		trace_hclge_vf_mbx_get(hdev, req);
+
+		/* synchronous messages are time critical and need preferential
+		 * treatment. Therefore, we need to acknowledge all the sync
+		 * responses as quickly as possible so that waiting tasks do not
+		 * timeout and simultaneously queue the async messages for later
+		 * prcessing in context of mailbox task i.e. the slow path.
+		 */
+		switch (code) {
+		case HCLGE_MBX_PF_VF_RESP:
+			hclgevf_handle_mbx_response(hdev, req);
+			break;
+		case HCLGE_MBX_LINK_STAT_CHANGE:
+		case HCLGE_MBX_ASSERTING_RESET:
+		case HCLGE_MBX_LINK_STAT_MODE:
+		case HCLGE_MBX_PUSH_VLAN_INFO:
+		case HCLGE_MBX_PUSH_PROMISC_INFO:
+			hclgevf_handle_mbx_msg(hdev, req);
+			break;
+		default:
+			dev_err(&hdev->pdev->dev,
+				"VF received unsupported(%u) mbx msg from PF\n",
+				code);
+			break;
+		}
+		crq->desc[crq->next_to_use].flag = 0;
+		hclge_mbx_ring_ptr_move_crq(crq);
+	}
+
+	/* Write back CMDQ_RQ header pointer, M7 need this pointer */
+	hclgevf_write_dev(&hdev->hw, HCLGE_COMM_NIC_CRQ_HEAD_REG,
+			  crq->next_to_use);
+}
+
+static void hclgevf_parse_promisc_info(struct hclgevf_dev *hdev,
+				       u16 promisc_info)
+{
+	if (!promisc_info)
+		dev_info(&hdev->pdev->dev,
+			 "Promisc mode is closed by host for being untrusted.\n");
+}
+
+void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
+{
+	struct hclge_mbx_port_base_vlan *vlan_info;
+	struct hclge_mbx_link_status *link_info;
+	struct hclge_mbx_link_mode *link_mode;
+	enum hnae3_reset_type reset_type;
+	u16 link_status, state;
+	__le16 *msg_q;
+	u16 opcode;
+	u8 duplex;
+	u32 speed;
+	u32 tail;
+	u8 flag;
+	u16 idx;
+
+	tail = hdev->arq.tail;
+
+	/* process all the async queue messages */
+	while (tail != hdev->arq.head) {
+		if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE,
+			     &hdev->hw.hw.comm_state)) {
+			dev_info(&hdev->pdev->dev,
+				 "vf crq need init in async\n");
+			return;
+		}
+
+		msg_q = hdev->arq.msg_q[hdev->arq.head];
+		opcode = le16_to_cpu(msg_q[0]);
+		switch (opcode) {
+		case HCLGE_MBX_LINK_STAT_CHANGE:
+			link_info = (struct hclge_mbx_link_status *)(msg_q + 1);
+			link_status = le16_to_cpu(link_info->link_status);
+			speed = le32_to_cpu(link_info->speed);
+			duplex = (u8)le16_to_cpu(link_info->duplex);
+			flag = link_info->flag;
+
+			/* update upper layer with new link link status */
+			hclgevf_update_speed_duplex(hdev, speed, duplex);
+			hclgevf_update_link_status(hdev, link_status);
+
+			if (flag & HCLGE_MBX_PUSH_LINK_STATUS_EN)
+				set_bit(HCLGEVF_STATE_PF_PUSH_LINK_STATUS,
+					&hdev->state);
+
+			break;
+		case HCLGE_MBX_LINK_STAT_MODE:
+			link_mode = (struct hclge_mbx_link_mode *)(msg_q + 1);
+			idx = le16_to_cpu(link_mode->idx);
+			if (idx)
+				hdev->hw.mac.supported =
+					le64_to_cpu(link_mode->link_mode);
+			else
+				hdev->hw.mac.advertising =
+					le64_to_cpu(link_mode->link_mode);
+			break;
+		case HCLGE_MBX_ASSERTING_RESET:
+			/* PF has asserted reset hence VF should go in pending
+			 * state and poll for the hardware reset status till it
+			 * has been completely reset. After this stack should
+			 * eventually be re-initialized.
+			 */
+			reset_type =
+				(enum hnae3_reset_type)le16_to_cpu(msg_q[1]);
+			set_bit(reset_type, &hdev->reset_pending);
+			set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state);
+			hclgevf_reset_task_schedule(hdev);
+
+			break;
+		case HCLGE_MBX_PUSH_VLAN_INFO:
+			vlan_info =
+				(struct hclge_mbx_port_base_vlan *)(msg_q + 1);
+			state = le16_to_cpu(vlan_info->state);
+			hclgevf_update_port_base_vlan_info(hdev, state,
+							   vlan_info);
+			break;
+		case HCLGE_MBX_PUSH_PROMISC_INFO:
+			hclgevf_parse_promisc_info(hdev, le16_to_cpu(msg_q[1]));
+			break;
+		default:
+			dev_err(&hdev->pdev->dev,
+				"fetched unsupported(%u) message from arq\n",
+				opcode);
+			break;
+		}
+
+		hclge_mbx_head_ptr_move_arq(hdev->arq);
+		atomic_dec(&hdev->arq.count);
+		msg_q = hdev->arq.msg_q[hdev->arq.head];
+	}
+}

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_regs.c

@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (c) 2023 Hisilicon Limited.
+
+#include "hclgevf_main.h"
+#include "hclgevf_regs.h"
+#include "hnae3.h"
+
+static const u32 cmdq_reg_addr_list[] = {HCLGE_COMM_NIC_CSQ_BASEADDR_L_REG,
+					 HCLGE_COMM_NIC_CSQ_BASEADDR_H_REG,
+					 HCLGE_COMM_NIC_CSQ_DEPTH_REG,
+					 HCLGE_COMM_NIC_CSQ_TAIL_REG,
+					 HCLGE_COMM_NIC_CSQ_HEAD_REG,
+					 HCLGE_COMM_NIC_CRQ_BASEADDR_L_REG,
+					 HCLGE_COMM_NIC_CRQ_BASEADDR_H_REG,
+					 HCLGE_COMM_NIC_CRQ_DEPTH_REG,
+					 HCLGE_COMM_NIC_CRQ_TAIL_REG,
+					 HCLGE_COMM_NIC_CRQ_HEAD_REG,
+					 HCLGE_COMM_VECTOR0_CMDQ_SRC_REG,
+					 HCLGE_COMM_VECTOR0_CMDQ_STATE_REG,
+					 HCLGE_COMM_CMDQ_INTR_EN_REG,
+					 HCLGE_COMM_CMDQ_INTR_GEN_REG};
+
+static const u32 common_reg_addr_list[] = {HCLGEVF_MISC_VECTOR_REG_BASE,
+					   HCLGEVF_RST_ING,
+					   HCLGEVF_GRO_EN_REG};
+
+static const u32 ring_reg_addr_list[] = {HCLGEVF_RING_RX_ADDR_L_REG,
+					 HCLGEVF_RING_RX_ADDR_H_REG,
+					 HCLGEVF_RING_RX_BD_NUM_REG,
+					 HCLGEVF_RING_RX_BD_LENGTH_REG,
+					 HCLGEVF_RING_RX_MERGE_EN_REG,
+					 HCLGEVF_RING_RX_TAIL_REG,
+					 HCLGEVF_RING_RX_HEAD_REG,
+					 HCLGEVF_RING_RX_FBD_NUM_REG,
+					 HCLGEVF_RING_RX_OFFSET_REG,
+					 HCLGEVF_RING_RX_FBD_OFFSET_REG,
+					 HCLGEVF_RING_RX_STASH_REG,
+					 HCLGEVF_RING_RX_BD_ERR_REG,
+					 HCLGEVF_RING_TX_ADDR_L_REG,
+					 HCLGEVF_RING_TX_ADDR_H_REG,
+					 HCLGEVF_RING_TX_BD_NUM_REG,
+					 HCLGEVF_RING_TX_PRIORITY_REG,
+					 HCLGEVF_RING_TX_TC_REG,
+					 HCLGEVF_RING_TX_MERGE_EN_REG,
+					 HCLGEVF_RING_TX_TAIL_REG,
+					 HCLGEVF_RING_TX_HEAD_REG,
+					 HCLGEVF_RING_TX_FBD_NUM_REG,
+					 HCLGEVF_RING_TX_OFFSET_REG,
+					 HCLGEVF_RING_TX_EBD_NUM_REG,
+					 HCLGEVF_RING_TX_EBD_OFFSET_REG,
+					 HCLGEVF_RING_TX_BD_ERR_REG,
+					 HCLGEVF_RING_EN_REG};
+
+static const u32 tqp_intr_reg_addr_list[] = {HCLGEVF_TQP_INTR_CTRL_REG,
+					     HCLGEVF_TQP_INTR_GL0_REG,
+					     HCLGEVF_TQP_INTR_GL1_REG,
+					     HCLGEVF_TQP_INTR_GL2_REG,
+					     HCLGEVF_TQP_INTR_RL_REG};
+
+enum hclgevf_reg_tag {
+	HCLGEVF_REG_TAG_CMDQ = 0,
+	HCLGEVF_REG_TAG_COMMON,
+	HCLGEVF_REG_TAG_RING,
+	HCLGEVF_REG_TAG_TQP_INTR,
+};
+
+#pragma pack(4)
+struct hclgevf_reg_tlv {
+	u16 tag;
+	u16 len;
+};
+
+struct hclgevf_reg_header {
+	u64 magic_number;
+	u8 is_vf;
+	u8 rsv[7];
+};
+
+#pragma pack()
+
+#define HCLGEVF_REG_TLV_SIZE		sizeof(struct hclgevf_reg_tlv)
+#define HCLGEVF_REG_HEADER_SIZE		sizeof(struct hclgevf_reg_header)
+#define HCLGEVF_REG_TLV_SPACE		(sizeof(struct hclgevf_reg_tlv) / sizeof(u32))
+#define HCLGEVF_REG_HEADER_SPACE	(sizeof(struct hclgevf_reg_header) / sizeof(u32))
+#define HCLGEVF_REG_MAGIC_NUMBER	0x686e733372656773 /* meaning is hns3regs */
+
+static u32 hclgevf_reg_get_header(void *data)
+{
+	struct hclgevf_reg_header *header = data;
+
+	header->magic_number = HCLGEVF_REG_MAGIC_NUMBER;
+	header->is_vf = 0x1;
+
+	return HCLGEVF_REG_HEADER_SPACE;
+}
+
+static u32 hclgevf_reg_get_tlv(u32 tag, u32 regs_num, void *data)
+{
+	struct hclgevf_reg_tlv *tlv = data;
+
+	tlv->tag = tag;
+	tlv->len = regs_num * sizeof(u32) + HCLGEVF_REG_TLV_SIZE;
+
+	return HCLGEVF_REG_TLV_SPACE;
+}
+
+int hclgevf_get_regs_len(struct hnae3_handle *handle)
+{
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	int cmdq_len, common_len, ring_len, tqp_intr_len;
+
+	cmdq_len = HCLGEVF_REG_TLV_SIZE + sizeof(cmdq_reg_addr_list);
+	common_len = HCLGEVF_REG_TLV_SIZE + sizeof(common_reg_addr_list);
+	ring_len = HCLGEVF_REG_TLV_SIZE + sizeof(ring_reg_addr_list);
+	tqp_intr_len = HCLGEVF_REG_TLV_SIZE + sizeof(tqp_intr_reg_addr_list);
+
+	/* return the total length of all register values */
+	return HCLGEVF_REG_HEADER_SIZE + cmdq_len + common_len +
+	       tqp_intr_len * (hdev->num_msi_used - 1) +
+	       ring_len * hdev->num_tqps;
+}
+
+void hclgevf_get_regs(struct hnae3_handle *handle, u32 *version,
+		      void *data)
+{
+#define HCLGEVF_RING_INT_REG_OFFSET	0x4
+
+	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
+	struct hnae3_queue *tqp;
+	int i, j, reg_num;
+	u32 *reg = data;
+
+	*version = hdev->fw_version;
+	reg += hclgevf_reg_get_header(reg);
+
+	/* fetching per-VF registers values from VF PCIe register space */
+	reg_num = ARRAY_SIZE(cmdq_reg_addr_list);
+	reg += hclgevf_reg_get_tlv(HCLGEVF_REG_TAG_CMDQ, reg_num, reg);
+	for (i = 0; i < reg_num; i++)
+		*reg++ = hclgevf_read_dev(&hdev->hw, cmdq_reg_addr_list[i]);
+
+	reg_num = ARRAY_SIZE(common_reg_addr_list);
+	reg += hclgevf_reg_get_tlv(HCLGEVF_REG_TAG_COMMON, reg_num, reg);
+	for (i = 0; i < reg_num; i++)
+		*reg++ = hclgevf_read_dev(&hdev->hw, common_reg_addr_list[i]);
+
+	reg_num = ARRAY_SIZE(ring_reg_addr_list);
+	for (j = 0; j < hdev->num_tqps; j++) {
+		reg += hclgevf_reg_get_tlv(HCLGEVF_REG_TAG_RING, reg_num, reg);
+		tqp = &hdev->htqp[j].q;
+		for (i = 0; i < reg_num; i++)
+			*reg++ = readl_relaxed(tqp->io_base -
+					       HCLGEVF_TQP_REG_OFFSET +
+					       ring_reg_addr_list[i]);
+	}
+
+	reg_num = ARRAY_SIZE(tqp_intr_reg_addr_list);
+	for (j = 0; j < hdev->num_msi_used - 1; j++) {
+		reg += hclgevf_reg_get_tlv(HCLGEVF_REG_TAG_TQP_INTR,
+					   reg_num, reg);
+		for (i = 0; i < reg_num; i++)
+			*reg++ = hclgevf_read_dev(&hdev->hw,
+						  tqp_intr_reg_addr_list[i] +
+						  HCLGEVF_RING_INT_REG_OFFSET * j);
+	}
+}

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_regs.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2023 Hisilicon Limited. */
+
+#ifndef __HCLGEVF_REGS_H
+#define __HCLGEVF_REGS_H
+#include <linux/types.h>
+
+struct hnae3_handle;
+
+int hclgevf_get_regs_len(struct hnae3_handle *handle);
+void hclgevf_get_regs(struct hnae3_handle *handle, u32 *version,
+		      void *data);
+#endif

linux-7.2.3/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_trace.h

@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) 2018-2019 Hisilicon Limited. */
+
+/* This must be outside ifdef _HCLGEVF_TRACE_H */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hns3
+
+#if !defined(_HCLGEVF_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define _HCLGEVF_TRACE_H_
+
+#include <linux/tracepoint.h>
+
+#define VF_GET_MBX_LEN	(sizeof(struct hclge_mbx_pf_to_vf_cmd) / sizeof(u32))
+#define VF_SEND_MBX_LEN	(sizeof(struct hclge_mbx_vf_to_pf_cmd) / sizeof(u32))
+
+TRACE_EVENT(hclge_vf_mbx_get,
+	TP_PROTO(
+		struct hclgevf_dev *hdev,
+		struct hclge_mbx_pf_to_vf_cmd *req),
+	TP_ARGS(hdev, req),
+
+	TP_STRUCT__entry(
+		__field(u8, vfid)
+		__field(u16, code)
+		__string(pciname, pci_name(hdev->pdev))
+		__string(devname, hdev->nic.kinfo.netdev->name)
+		__array(u32, mbx_data, VF_GET_MBX_LEN)
+	),
+
+	TP_fast_assign(
+		__entry->vfid = req->dest_vfid;
+		__entry->code = le16_to_cpu(req->msg.code);
+		__assign_str(pciname);
+		__assign_str(devname);
+		memcpy(__entry->mbx_data, req,
+		       sizeof(struct hclge_mbx_pf_to_vf_cmd));
+	),
+
+	TP_printk(
+		"%s %s vfid:%u code:%u data:%s",
+		__get_str(pciname), __get_str(devname), __entry->vfid,
+		__entry->code,
+		__print_array(__entry->mbx_data, VF_GET_MBX_LEN, sizeof(u32))
+	)
+);
+
+TRACE_EVENT(hclge_vf_mbx_send,
+	TP_PROTO(
+		struct hclgevf_dev *hdev,
+		struct hclge_mbx_vf_to_pf_cmd *req),
+	TP_ARGS(hdev, req),
+
+	TP_STRUCT__entry(
+		__field(u8, vfid)
+		__field(u8, code)
+		__field(u8, subcode)
+		__string(pciname, pci_name(hdev->pdev))
+		__string(devname, hdev->nic.kinfo.netdev->name)
+		__array(u32, mbx_data, VF_SEND_MBX_LEN)
+	),
+
+	TP_fast_assign(
+		__entry->vfid = req->mbx_src_vfid;
+		__entry->code = req->msg.code;
+		__entry->subcode = req->msg.subcode;
+		__assign_str(pciname);
+		__assign_str(devname);
+		memcpy(__entry->mbx_data, req,
+		       sizeof(struct hclge_mbx_vf_to_pf_cmd));
+	),
+
+	TP_printk(
+		"%s %s vfid:%u code:%u subcode:%u data:%s",
+		__get_str(pciname), __get_str(devname), __entry->vfid,
+		__entry->code, __entry->subcode,
+		__print_array(__entry->mbx_data, VF_SEND_MBX_LEN, sizeof(u32))
+	)
+);
+
+DECLARE_EVENT_CLASS(hclge_vf_cmd_template,
+		    TP_PROTO(struct hclge_comm_hw *hw,
+			     struct hclge_desc *desc,
+			     int index,
+			     int num),
+
+		    TP_ARGS(hw, desc, index, num),
+
+		    TP_STRUCT__entry(__field(u16, opcode)
+			__field(u16, flag)
+			__field(u16, retval)
+			__field(u16, rsv)
+			__field(int, index)
+			__field(int, num)
+			__string(pciname, pci_name(hw->cmq.csq.pdev))
+			__array(u32, data, HCLGE_DESC_DATA_LEN)),
+
+		    TP_fast_assign(int i;
+			__entry->opcode = le16_to_cpu(desc->opcode);
+			__entry->flag = le16_to_cpu(desc->flag);
+			__entry->retval = le16_to_cpu(desc->retval);
+			__entry->rsv = le16_to_cpu(desc->rsv);
+			__entry->index = index;
+			__entry->num = num;
+			__assign_str(pciname);
+			for (i = 0; i < HCLGE_DESC_DATA_LEN; i++)
+				__entry->data[i] = le32_to_cpu(desc->data[i]);),
+
+		    TP_printk("%s opcode:0x%04x %d-%d flag:0x%04x retval:0x%04x rsv:0x%04x data:%s",
+			      __get_str(pciname), __entry->opcode,
+			      __entry->index, __entry->num,
+			      __entry->flag, __entry->retval, __entry->rsv,
+			      __print_array(__entry->data,
+					    HCLGE_DESC_DATA_LEN, sizeof(u32)))
+);
+
+DEFINE_EVENT(hclge_vf_cmd_template, hclge_vf_cmd_send,
+	     TP_PROTO(struct hclge_comm_hw *hw,
+		      struct hclge_desc *desc,
+		      int index,
+		      int num),
+	     TP_ARGS(hw, desc, index, num));
+
+DEFINE_EVENT(hclge_vf_cmd_template, hclge_vf_cmd_get,
+	     TP_PROTO(struct hclge_comm_hw *hw,
+		      struct hclge_desc *desc,
+		      int index,
+		      int num),
+	     TP_ARGS(hw, desc, index, num));
+
+#endif /* _HCLGEVF_TRACE_H_ */
+
+/* This must be outside ifdef _HCLGEVF_TRACE_H */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE hclgevf_trace
+#include <trace/define_trace.h>