net: hns3: refactor hclge_cmd_send with new hclge_comm_cmd_send API

This patch firstly uses new hardware description struct hclge_comm_hw as
child member of hclge_hw and deletes the original child memebers of
hclge_hw. All the hclge_hw variables used in PF module is modified
according to the new hclge_hw.

Secondly hclge_cmd_send is refactored to use hclge_comm_cmd_send APIs. The
old functions called by hclge_cmd_send are deleted and hclge_cmd_send is
kept to avoid too many meaningless modifications.
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/Makefile

@@ -16,10 +16,13 @@ hns3-objs = hns3_enet.o hns3_ethtool.o hns3_debugfs.o
 hns3-$(CONFIG_HNS3_DCB) += hns3_dcbnl.o
 
 obj-$(CONFIG_HNS3_HCLGEVF) += hclgevf.o
-hclgevf-objs = hns3vf/hclgevf_main.o hns3vf/hclgevf_cmd.o hns3vf/hclgevf_mbx.o  hns3vf/hclgevf_devlink.o
+
+hclgevf-objs = hns3vf/hclgevf_main.o hns3vf/hclgevf_cmd.o hns3vf/hclgevf_mbx.o  hns3vf/hclgevf_devlink.o \
+		hns3_common/hclge_comm_cmd.o
 
 obj-$(CONFIG_HNS3_HCLGE) += hclge.o
 hclge-objs = hns3pf/hclge_main.o hns3pf/hclge_cmd.o hns3pf/hclge_mdio.o hns3pf/hclge_tm.o \
-		hns3pf/hclge_mbx.o hns3pf/hclge_err.o  hns3pf/hclge_debugfs.o hns3pf/hclge_ptp.o hns3pf/hclge_devlink.o
+		hns3pf/hclge_mbx.o hns3pf/hclge_err.o  hns3pf/hclge_debugfs.o hns3pf/hclge_ptp.o hns3pf/hclge_devlink.o \
+		hns3_common/hclge_comm_cmd.o
 
 hclge-$(CONFIG_HNS3_DCB) += hns3pf/hclge_dcb.o

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h

@@ -11,63 +11,18 @@
 
 #define HCLGE_CMDQ_TX_TIMEOUT		30000
 #define HCLGE_CMDQ_CLEAR_WAIT_TIME	200
-#define HCLGE_DESC_DATA_LEN		6
 
 struct hclge_dev;
 
 #define HCLGE_CMDQ_RX_INVLD_B		0
 #define HCLGE_CMDQ_RX_OUTVLD_B		1
 
-struct hclge_cmq_ring {
-	dma_addr_t desc_dma_addr;
-	struct hclge_desc *desc;
-	struct hclge_dev *dev;
-	u32 head;
-	u32 tail;
-
-	u16 buf_size;
-	u16 desc_num;
-	int next_to_use;
-	int next_to_clean;
-	u8 ring_type; /* cmq ring type */
-	spinlock_t lock; /* Command queue lock */
-};
-
-enum hclge_cmd_return_status {
-	HCLGE_CMD_EXEC_SUCCESS	= 0,
-	HCLGE_CMD_NO_AUTH	= 1,
-	HCLGE_CMD_NOT_SUPPORTED	= 2,
-	HCLGE_CMD_QUEUE_FULL	= 3,
-	HCLGE_CMD_NEXT_ERR	= 4,
-	HCLGE_CMD_UNEXE_ERR	= 5,
-	HCLGE_CMD_PARA_ERR	= 6,
-	HCLGE_CMD_RESULT_ERR	= 7,
-	HCLGE_CMD_TIMEOUT	= 8,
-	HCLGE_CMD_HILINK_ERR	= 9,
-	HCLGE_CMD_QUEUE_ILLEGAL	= 10,
-	HCLGE_CMD_INVALID	= 11,
-};
-
-enum hclge_cmd_status {
-	HCLGE_STATUS_SUCCESS	= 0,
-	HCLGE_ERR_CSQ_FULL	= -1,
-	HCLGE_ERR_CSQ_TIMEOUT	= -2,
-	HCLGE_ERR_CSQ_ERROR	= -3,
-};
-
 struct hclge_misc_vector {
 	u8 __iomem *addr;
 	int vector_irq;
 	char name[HNAE3_INT_NAME_LEN];
 };
 
-struct hclge_cmq {
-	struct hclge_cmq_ring csq;
-	struct hclge_cmq_ring crq;
-	u16 tx_timeout;
-	enum hclge_cmd_status last_status;
-};
-
 #define HCLGE_CMD_FLAG_IN	BIT(0)
 #define HCLGE_CMD_FLAG_OUT	BIT(1)
 #define HCLGE_CMD_FLAG_NEXT	BIT(2)
@@ -1239,25 +1194,6 @@ struct hclge_caps_bit_map {
 };
 
 int hclge_cmd_init(struct hclge_dev *hdev);
-static inline void hclge_write_reg(void __iomem *base, u32 reg, u32 value)
-{
-	writel(value, base + reg);
-}
-
-#define hclge_write_dev(a, reg, value) \
-	hclge_write_reg((a)->io_base, reg, value)
-#define hclge_read_dev(a, reg) \
-	hclge_read_reg((a)->io_base, reg)
-
-static inline u32 hclge_read_reg(u8 __iomem *base, u32 reg)
-{
-	u8 __iomem *reg_addr = READ_ONCE(base);
-
-	return readl(reg_addr + reg);
-}
-
-#define HCLGE_SEND_SYNC(flag) \
-	((flag) & HCLGE_CMD_FLAG_NO_INTR)
 
 struct hclge_hw;
 int hclge_cmd_send(struct hclge_hw *hw, struct hclge_desc *desc, int num);
@@ -1265,9 +1201,9 @@ void hclge_cmd_setup_basic_desc(struct hclge_desc *desc,
 				enum hclge_opcode_type opcode, bool is_read);
 void hclge_cmd_reuse_desc(struct hclge_desc *desc, bool is_read);
 
-enum hclge_cmd_status hclge_cmd_mdio_write(struct hclge_hw *hw,
+enum hclge_comm_cmd_status hclge_cmd_mdio_write(struct hclge_hw *hw,
 						struct hclge_desc *desc);
-enum hclge_cmd_status hclge_cmd_mdio_read(struct hclge_hw *hw,
+enum hclge_comm_cmd_status hclge_cmd_mdio_read(struct hclge_hw *hw,
 					       struct hclge_desc *desc);
 
 void hclge_cmd_uninit(struct hclge_dev *hdev);

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -24,6 +24,7 @@
 #include "hclge_err.h"
 #include "hnae3.h"
 #include "hclge_devlink.h"
+#include "hclge_comm_cmd.h"
 
 #define HCLGE_NAME			"hclge"
 
@@ -1764,11 +1765,11 @@ static int hclge_alloc_tqps(struct hclge_dev *hdev)
 		 * HCLGE_TQP_MAX_SIZE_DEV_V2
 		 */
 		if (i < HCLGE_TQP_MAX_SIZE_DEV_V2)
-			tqp->q.io_base = hdev->hw.io_base +
+			tqp->q.io_base = hdev->hw.hw.io_base +
 					 HCLGE_TQP_REG_OFFSET +
 					 i * HCLGE_TQP_REG_SIZE;
 		else
-			tqp->q.io_base = hdev->hw.io_base +
+			tqp->q.io_base = hdev->hw.hw.io_base +
 					 HCLGE_TQP_REG_OFFSET +
 					 HCLGE_TQP_EXT_REG_OFFSET +
 					 (i - HCLGE_TQP_MAX_SIZE_DEV_V2) *
@@ -1912,7 +1913,7 @@ static int hclge_vport_setup(struct hclge_vport *vport, u16 num_tqps)
 	nic->pdev = hdev->pdev;
 	nic->ae_algo = &ae_algo;
 	nic->numa_node_mask = hdev->numa_node_mask;
-	nic->kinfo.io_base = hdev->hw.io_base;
+	nic->kinfo.io_base = hdev->hw.hw.io_base;
 
 	ret = hclge_knic_setup(vport, num_tqps,
 			       hdev->num_tx_desc, hdev->num_rx_desc);
@@ -2597,8 +2598,8 @@ static int hclge_init_roce_base_info(struct hclge_vport *vport)
 	roce->rinfo.base_vector = hdev->num_nic_msi;
 
 	roce->rinfo.netdev = nic->kinfo.netdev;
-	roce->rinfo.roce_io_base = hdev->hw.io_base;
-	roce->rinfo.roce_mem_base = hdev->hw.mem_base;
+	roce->rinfo.roce_io_base = hdev->hw.hw.io_base;
+	roce->rinfo.roce_mem_base = hdev->hw.hw.mem_base;
 
 	roce->pdev = nic->pdev;
 	roce->ae_algo = nic->ae_algo;
@@ -3503,7 +3504,7 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
 	if (BIT(HCLGE_VECTOR0_IMPRESET_INT_B) & msix_src_reg) {
 		dev_info(&hdev->pdev->dev, "IMP reset interrupt\n");
 		set_bit(HNAE3_IMP_RESET, &hdev->reset_pending);
-		set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+		set_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state);
 		*clearval = BIT(HCLGE_VECTOR0_IMPRESET_INT_B);
 		hdev->rst_stats.imp_rst_cnt++;
 		return HCLGE_VECTOR0_EVENT_RST;
@@ -3511,7 +3512,7 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
 
 	if (BIT(HCLGE_VECTOR0_GLOBALRESET_INT_B) & msix_src_reg) {
 		dev_info(&hdev->pdev->dev, "global reset interrupt\n");
-		set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+		set_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state);
 		set_bit(HNAE3_GLOBAL_RESET, &hdev->reset_pending);
 		*clearval = BIT(HCLGE_VECTOR0_GLOBALRESET_INT_B);
 		hdev->rst_stats.global_rst_cnt++;
@@ -3645,7 +3646,7 @@ static void hclge_get_misc_vector(struct hclge_dev *hdev)
 
 	vector->vector_irq = pci_irq_vector(hdev->pdev, 0);
 
-	vector->addr = hdev->hw.io_base + HCLGE_MISC_VECTOR_REG_BASE;
+	vector->addr = hdev->hw.hw.io_base + HCLGE_MISC_VECTOR_REG_BASE;
 	hdev->vector_status[0] = 0;
 
 	hdev->num_msi_left -= 1;
@@ -3829,7 +3830,7 @@ static int hclge_set_all_vf_rst(struct hclge_dev *hdev, bool reset)
 static void hclge_mailbox_service_task(struct hclge_dev *hdev)
 {
 	if (!test_and_clear_bit(HCLGE_STATE_MBX_SERVICE_SCHED, &hdev->state) ||
-	    test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state) ||
+	    test_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state) ||
 	    test_and_set_bit(HCLGE_STATE_MBX_HANDLING, &hdev->state))
 		return;
 
@@ -4076,7 +4077,7 @@ static int hclge_reset_prepare_wait(struct hclge_dev *hdev)
 		 * any mailbox handling or command to firmware is only valid
 		 * after hclge_cmd_init is called.
 		 */
-		set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+		set_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state);
 		hdev->rst_stats.pf_rst_cnt++;
 		break;
 	case HNAE3_FLR_RESET:
@@ -4630,11 +4631,11 @@ static void hclge_get_vector_info(struct hclge_dev *hdev, u16 idx,
 
 	/* need an extend offset to config vector >= 64 */
 	if (idx - 1 < HCLGE_PF_MAX_VECTOR_NUM_DEV_V2)
-		vector_info->io_addr = hdev->hw.io_base +
+		vector_info->io_addr = hdev->hw.hw.io_base +
 				HCLGE_VECTOR_REG_BASE +
 				(idx - 1) * HCLGE_VECTOR_REG_OFFSET;
 	else
-		vector_info->io_addr = hdev->hw.io_base +
+		vector_info->io_addr = hdev->hw.hw.io_base +
 				HCLGE_VECTOR_EXT_REG_BASE +
 				(idx - 1) / HCLGE_PF_MAX_VECTOR_NUM_DEV_V2 *
 				HCLGE_VECTOR_REG_OFFSET_H +
@@ -5272,7 +5273,7 @@ int hclge_bind_ring_with_vector(struct hclge_vport *vport,
 	struct hclge_desc desc;
 	struct hclge_ctrl_vector_chain_cmd *req =
 		(struct hclge_ctrl_vector_chain_cmd *)desc.data;
-	enum hclge_cmd_status status;
+	enum hclge_comm_cmd_status status;
 	enum hclge_opcode_type op;
 	u16 tqp_type_and_id;
 	int i;
@@ -7808,7 +7809,7 @@ static bool hclge_get_cmdq_stat(struct hnae3_handle *handle)
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
 
-	return test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+	return test_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state);
 }
 
 static bool hclge_ae_dev_resetting(struct hnae3_handle *handle)
@@ -9038,7 +9039,7 @@ int hclge_rm_mc_addr_common(struct hclge_vport *vport,
 	char format_mac_addr[HNAE3_FORMAT_MAC_ADDR_LEN];
 	struct hclge_dev *hdev = vport->back;
 	struct hclge_mac_vlan_tbl_entry_cmd req;
-	enum hclge_cmd_status status;
+	enum hclge_comm_cmd_status status;
 	struct hclge_desc desc[3];
 
 	/* mac addr check */
@@ -11536,10 +11537,11 @@ static int hclge_dev_mem_map(struct hclge_dev *hdev)
 	if (!(pci_select_bars(pdev, IORESOURCE_MEM) & BIT(HCLGE_MEM_BAR)))
 		return 0;
 
-	hw->mem_base = devm_ioremap_wc(&pdev->dev,
+	hw->hw.mem_base =
+		devm_ioremap_wc(&pdev->dev,
 				pci_resource_start(pdev, HCLGE_MEM_BAR),
 				pci_resource_len(pdev, HCLGE_MEM_BAR));
-	if (!hw->mem_base) {
+	if (!hw->hw.mem_base) {
 		dev_err(&pdev->dev, "failed to map device memory\n");
 		return -EFAULT;
 	}
@@ -11578,8 +11580,8 @@ static int hclge_pci_init(struct hclge_dev *hdev)
 
 	pci_set_master(pdev);
 	hw = &hdev->hw;
-	hw->io_base = pcim_iomap(pdev, 2, 0);
-	if (!hw->io_base) {
+	hw->hw.io_base = pcim_iomap(pdev, 2, 0);
+	if (!hw->hw.io_base) {
 		dev_err(&pdev->dev, "Can't map configuration register space\n");
 		ret = -ENOMEM;
 		goto err_clr_master;
@@ -11594,7 +11596,7 @@ static int hclge_pci_init(struct hclge_dev *hdev)
 	return 0;
 
 err_unmap_io_base:
-	pcim_iounmap(pdev, hdev->hw.io_base);
+	pcim_iounmap(pdev, hdev->hw.hw.io_base);
 err_clr_master:
 	pci_clear_master(pdev);
 	pci_release_regions(pdev);
@@ -11608,10 +11610,10 @@ static void hclge_pci_uninit(struct hclge_dev *hdev)
 {
 	struct pci_dev *pdev = hdev->pdev;
 
-	if (hdev->hw.mem_base)
-		devm_iounmap(&pdev->dev, hdev->hw.mem_base);
+	if (hdev->hw.hw.mem_base)
+		devm_iounmap(&pdev->dev, hdev->hw.hw.mem_base);
 
-	pcim_iounmap(pdev, hdev->hw.io_base);
+	pcim_iounmap(pdev, hdev->hw.hw.io_base);
 	pci_free_irq_vectors(pdev);
 	pci_clear_master(pdev);
 	pci_release_mem_regions(pdev);
@@ -11668,7 +11670,7 @@ static void hclge_reset_prepare_general(struct hnae3_ae_dev *ae_dev,
 
 	/* disable misc vector before reset done */
 	hclge_enable_vector(&hdev->misc_vector, false);
-	set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+	set_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state);
 
 	if (hdev->reset_type == HNAE3_FLR_RESET)
 		hdev->rst_stats.flr_rst_cnt++;
@@ -11955,7 +11957,7 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 err_devlink_uninit:
 	hclge_devlink_uninit(hdev);
 err_pci_uninit:
-	pcim_iounmap(pdev, hdev->hw.io_base);
+	pcim_iounmap(pdev, hdev->hw.hw.io_base);
 	pci_clear_master(pdev);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h

@@ -228,7 +228,6 @@ enum HCLGE_DEV_STATE {
 	HCLGE_STATE_MBX_HANDLING,
 	HCLGE_STATE_ERR_SERVICE_SCHED,
 	HCLGE_STATE_STATISTICS_UPDATING,
-	HCLGE_STATE_CMD_DISABLE,
 	HCLGE_STATE_LINK_UPDATING,
 	HCLGE_STATE_RST_FAIL,
 	HCLGE_STATE_FD_TBL_CHANGED,
@@ -294,11 +293,9 @@ struct hclge_mac {
 };
 
 struct hclge_hw {
-	void __iomem *io_base;
-	void __iomem *mem_base;
+	struct hclge_comm_hw hw;
 	struct hclge_mac mac;
 	int num_vec;
-	struct hclge_cmq cmq;
 };
 
 /* TQP stats */
@@ -641,6 +638,11 @@ struct key_info {
 #define MAX_FD_FILTER_NUM	4096
 #define HCLGE_ARFS_EXPIRE_INTERVAL	5UL
 
+#define hclge_read_dev(a, reg) \
+	hclge_comm_read_reg((a)->hw.io_base, reg)
+#define hclge_write_dev(a, reg, value) \
+	hclge_comm_write_reg((a)->hw.io_base, reg, value)
+
 enum HCLGE_FD_ACTIVE_RULE_TYPE {
 	HCLGE_FD_RULE_NONE,
 	HCLGE_FD_ARFS_ACTIVE,

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c

@@ -33,7 +33,7 @@ static int hclge_gen_resp_to_vf(struct hclge_vport *vport,
 {
 	struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
 	struct hclge_dev *hdev = vport->back;
-	enum hclge_cmd_status status;
+	enum hclge_comm_cmd_status status;
 	struct hclge_desc desc;
 	u16 resp;
 
@@ -90,7 +90,7 @@ static int hclge_send_mbx_msg(struct hclge_vport *vport, u8 *msg, u16 msg_len,
 {
 	struct hclge_mbx_pf_to_vf_cmd *resp_pf_to_vf;
 	struct hclge_dev *hdev = vport->back;
-	enum hclge_cmd_status status;
+	enum hclge_comm_cmd_status status;
 	struct hclge_desc desc;
 
 	resp_pf_to_vf = (struct hclge_mbx_pf_to_vf_cmd *)desc.data;
@@ -663,7 +663,7 @@ static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
 {
 	u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG);
 
-	return tail == hw->cmq.crq.next_to_use;
+	return tail == hw->hw.cmq.crq.next_to_use;
 }
 
 static void hclge_handle_ncsi_error(struct hclge_dev *hdev)
@@ -694,7 +694,7 @@ static void hclge_handle_vf_tbl(struct hclge_vport *vport,
 
 void hclge_mbx_handler(struct hclge_dev *hdev)
 {
-	struct hclge_cmq_ring *crq = &hdev->hw.cmq.crq;
+	struct hclge_comm_cmq_ring *crq = &hdev->hw.hw.cmq.crq;
 	struct hclge_respond_to_vf_msg resp_msg;
 	struct hclge_mbx_vf_to_pf_cmd *req;
 	struct hclge_vport *vport;
@@ -705,7 +705,8 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
 
 	/* handle all the mailbox requests in the queue */
 	while (!hclge_cmd_crq_empty(&hdev->hw)) {
-		if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state)) {
+		if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE,
+			     &hdev->hw.hw.comm_state)) {
 			dev_warn(&hdev->pdev->dev,
 				 "command queue needs re-initializing\n");
 			return;

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.c

@@ -47,7 +47,7 @@ static int hclge_mdio_write(struct mii_bus *bus, int phyid, int regnum,
 	struct hclge_desc desc;
 	int ret;
 
-	if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state))
+	if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state))
 		return 0;
 
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_MDIO_CONFIG, false);
@@ -85,7 +85,7 @@ static int hclge_mdio_read(struct mii_bus *bus, int phyid, int regnum)
 	struct hclge_desc desc;
 	int ret;
 
-	if (test_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state))
+	if (test_bit(HCLGE_COMM_STATE_CMD_DISABLE, &hdev->hw.hw.comm_state))
 		return 0;
 
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_MDIO_CONFIG, true);

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c

@@ -464,7 +464,7 @@ static int hclge_ptp_create_clock(struct hclge_dev *hdev)
 	}
 
 	spin_lock_init(&ptp->lock);
-	ptp->io_base = hdev->hw.io_base + HCLGE_PTP_REG_OFFSET;
+	ptp->io_base = hdev->hw.hw.io_base + HCLGE_PTP_REG_OFFSET;
 	ptp->ts_cfg.rx_filter = HWTSTAMP_FILTER_NONE;
 	ptp->ts_cfg.tx_type = HWTSTAMP_TX_OFF;
 	hdev->ptp = ptp;