scsi/hifc: add hifc driver FC service module

driver inclusion
category: feature
bugzilla: NA

-----------------------------------------------------------------------

This module is used to process services related to the FC protocol.
Signed-off-by: NChenguangli <chenguangli2@huawei.com>
Reviewed-by: NZengweiliang <zengweiliang.zengweiliang@huawei.com>
Acked-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/scsi/Kconfig

@@ -1113,6 +1113,8 @@ source "drivers/scsi/qla4xxx/Kconfig"
 source "drivers/scsi/qedi/Kconfig"
 source "drivers/scsi/qedf/Kconfig"
 
+source "drivers/scsi/huawei/Kconfig"
+
 config SCSI_LPFC
 	tristate "Emulex LightPulse Fibre Channel Support"
 	depends on PCI && SCSI

drivers/scsi/Makefile

@@ -83,6 +83,7 @@ obj-$(CONFIG_SCSI_QLOGIC_1280)	+= qla1280.o
 obj-$(CONFIG_SCSI_QLA_FC)	+= qla2xxx/
 obj-$(CONFIG_SCSI_QLA_ISCSI)	+= libiscsi.o qla4xxx/
 obj-$(CONFIG_SCSI_LPFC)		+= lpfc/
+obj-$(CONFIG_SCSI_HUAWEI_FC)	+= huawei/
 obj-$(CONFIG_SCSI_BFA_FC)	+= bfa/
 obj-$(CONFIG_SCSI_CHELSIO_FCOE)	+= csiostor/
 obj-$(CONFIG_SCSI_DMX3191D)	+= dmx3191d.o

drivers/scsi/huawei/Kconfig

+#
+# Huawei driver configuration
+#
+
+config SCSI_HUAWEI_FC
+	tristate "Huawei devices"
+	depends on PCI && SCSI
+	depends on SCSI_FC_ATTRS
+	default m
+	---help---
+	  If you have a Fibre Channel PCI card belonging to this class, say Y.
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Huawei cards. If you say Y, you will be asked
+	  for your specific card in the following questions.
+
+if SCSI_HUAWEI_FC
+
+source "drivers/scsi/huawei/hifc/Kconfig"
+
+endif # SCSI_HUAWEI_FC

drivers/scsi/huawei/Makefile

+#
+# Makefile for the Huawei device drivers.
+#
+
+obj-$(CONFIG_SCSI_FC_HIFC) += hifc/

drivers/scsi/huawei/hifc/Kconfig

+#
+# Huawei driver configuration
+#
+config SCSI_FC_HIFC
+	tristate "Huawei hifc Fibre Channel Support"
+	default m
+	depends on PCI && SCSI
+	depends on SCSI_FC_ATTRS
+	---help---
+	This driver supports Huawei Fibre Channel  PCI and
+	PCIE host adapters.

drivers/scsi/huawei/hifc/Makefile

+obj-$(CONFIG_SCSI_FC_HIFC) += hifc.o
+
+hifc-objs += hifc_utils.o
+hifc-objs += hifc_hba.o
+hifc-objs += hifc_portmng.o
+
+hifc-objs += hifc_module.o
+hifc-objs += hifc_chipitf.o
+hifc-objs += hifc_io.o
+hifc-objs += hifc_queue.o
+hifc-objs += hifc_service.o
+hifc-objs += hifc_wqe.o
+hifc-objs += hifc_cfg.o
+hifc-objs += hifc_lld.o
+
+hifc-objs += unf_io.o
+hifc-objs += unf_io_abnormal.o
+hifc-objs += unf_scsi.o
+hifc-objs += unf_init.o
+hifc-objs += unf_event.o
+hifc-objs += unf_exchg.o
+hifc-objs += unf_lport.o
+hifc-objs += unf_disc.o
+hifc-objs += unf_rport.o
+hifc-objs += unf_service.o
+hifc-objs += unf_portman.o
+hifc-objs += unf_npiv.o
+hifc-objs += hifc_sml.o
+hifc-objs += hifc_tool.o
+hifc-objs += hifc_tool_hw.o
+hifc-objs += hifc_dbgtool_knl.o
+
+hifc-objs += hifc_hwif.o
+hifc-objs += hifc_eqs.o
+hifc-objs += hifc_api_cmd.o
+hifc-objs += hifc_mgmt.o
+hifc-objs += hifc_wq.o
+hifc-objs += hifc_cmdq.o
+hifc-objs += hifc_hwdev.o
+hifc-objs += hifc_cqm_main.o
+hifc-objs += hifc_cqm_object.o
+

drivers/scsi/huawei/hifc/hifc_service.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/* Huawei Hifc PCI Express Linux driver
+ * Copyright(c) 2017 Huawei Technologies Co., Ltd
+ *
+ */
+
+#ifndef __HIFC_SERVICE_H__
+#define __HIFC_SERVICE_H__
+
+/* Send ElsCmnd or ElsRsp */
+unsigned int hifc_send_els_cmnd(void *phba, struct unf_frame_pkg_s *v_pkg);
+
+/* Send GsCmnd */
+unsigned int hifc_send_gs_cmnd(void *v_hba, struct unf_frame_pkg_s *v_pkg);
+
+/* Send BlsCmnd */
+unsigned int hifc_send_bls_cmnd(void *v_hba, struct unf_frame_pkg_s *v_pkg);
+
+/* Receive Frame from Root RQ */
+unsigned int hifc_rcv_service_frame_from_rq(
+			struct hifc_hba_s *v_hba,
+			struct hifc_root_rq_info_s *rq_info,
+			struct hifc_root_rq_complet_info_s *v_complet_info,
+			unsigned short v_rcv_buf_num);
+
+unsigned int hifc_rq_rcv_srv_err(struct hifc_hba_s *v_hba,
+				 struct hifc_root_rq_complet_info_s *v_info);
+
+unsigned int hifc_rq_rcv_els_rsp_sts(
+				struct hifc_hba_s *v_hba,
+				struct hifc_root_rq_complet_info_s *v_info);
+
+/* Receive Frame from SCQ */
+unsigned int hifc_rcv_scqe_entry_from_scq(void *v_hba, void *v_scqe,
+					  unsigned int scq_idx);
+
+/* FC txmfs */
+#define HIFC_DEFAULT_TX_MAX_FREAM_SIZE 256
+
+#define HIFC_FIRST_PKG_FLAG (1 << 0)
+#define HIFC_LAST_PKG_FLAG  (1 << 1)
+
+#define HIFC_CHECK_IF_FIRST_PKG(pkg_flag) ((pkg_flag) & HIFC_FIRST_PKG_FLAG)
+#define HIFC_CHECK_IF_LAST_PKG(pkg_flag)  ((pkg_flag) & HIFC_LAST_PKG_FLAG)
+
+#define HIFC_GET_SERVICE_TYPE(v_hba)        12
+#define HIFC_GET_PACKET_TYPE(v_service_type) 1
+#define HIFC_GET_PACKET_COS(v_service_type)  1
+#define HIFC_GET_PRLI_PAYLOAD_LEN \
+	(UNF_PRLI_PAYLOAD_LEN - UNF_PRLI_SIRT_EXTRA_SIZE)
+/* Start addr of the header/payloed of the cmnd buffer in the pkg */
+#define HIFC_FC_HEAD_LEN                          (sizeof(struct unf_fchead_s))
+#define HIFC_PAYLOAD_OFFSET                       (sizeof(struct unf_fchead_s))
+#define HIFC_GET_CMND_PAYLOAD_ADDR(v_pkg) \
+	UNF_GET_FLOGI_PAYLOAD(v_pkg)
+#define HIFC_GET_CMND_HEADER_ADDR(v_pkg)  \
+	((v_pkg)->unf_cmnd_pload_bl.buffer_ptr)
+#define HIFC_GET_RSP_HEADER_ADDR(v_pkg)   \
+	((v_pkg)->unf_rsp_pload_bl.buffer_ptr)
+#define HIFC_GET_RSP_PAYLOAD_ADDR(v_pkg)  \
+	((v_pkg)->unf_rsp_pload_bl.buffer_ptr + HIFC_PAYLOAD_OFFSET)
+#define HIFC_GET_CMND_FC_HEADER(v_pkg) \
+	(&(UNF_GET_SFS_ENTRY(v_pkg)->sfs_common.frame_head))
+#define HIFC_PKG_IS_ELS_RSP(els_cmnd_type)  \
+	(((els_cmnd_type) == ELS_ACC) || ((els_cmnd_type) == ELS_RJT))
+#define HIFC_XID_IS_VALID(xid, exi_base, exi_count) \
+	(((xid) >= (exi_base)) && ((xid) < ((exi_base) + (exi_count))))
+
+#define UNF_FC_PAYLOAD_ELS_MASK   0xFF000000
+#define UNF_FC_PAYLOAD_ELS_SHIFT  24
+#define UNF_FC_PAYLOAD_ELS_DWORD  0
+
+/* Note: this pfcpayload is little endian */
+#define UNF_GET_FC_PAYLOAD_ELS_CMND(pfcpayload) \
+	UNF_GET_SHIFTMASK(((unsigned int *)(void *)pfcpayload)\
+	[UNF_FC_PAYLOAD_ELS_DWORD], \
+	UNF_FC_PAYLOAD_ELS_SHIFT, UNF_FC_PAYLOAD_ELS_MASK)
+
+#define HIFC_ELS_CMND_MASK                0xffff
+#define HIFC_ELS_CMND__RELEVANT_SHIFT     16UL
+#define HIFC_GET_ELS_CMND_CODE(__cmnd) \
+	((unsigned short)((__cmnd) & HIFC_ELS_CMND_MASK))
+#define HIFC_GET_ELS_RSP_TYPE(__cmnd)  \
+	((unsigned short)((__cmnd) & HIFC_ELS_CMND_MASK))
+#define HIFC_GET_ELS_RSP_CODE(__cmnd)  \
+	((unsigned short)((__cmnd) >> HIFC_ELS_CMND__RELEVANT_SHIFT & \
+	HIFC_ELS_CMND_MASK))
+#define HIFC_GET_GS_CMND_CODE(__cmnd)  \
+	((unsigned short)((__cmnd) & HIFC_ELS_CMND_MASK))
+
+/* ELS CMND Request */
+#define ELS_CMND            0
+
+/* fh_f_ctl - Frame control flags. */
+#define HIFC_FC_EX_CTX      (1 << 23) /* sent by responder to exchange */
+#define HIFC_FC_SEQ_CTX     (1 << 22) /* sent by responder to sequence */
+#define HIFC_FC_FIRST_SEQ   (1 << 21) /* first sequence of this exchange */
+#define HIFC_FC_LAST_SEQ    (1 << 20) /* last sequence of this exchange */
+#define HIFC_FC_END_SEQ     (1 << 19) /* last frame of sequence */
+#define HIFC_FC_END_CONN    (1 << 18) /* end of class 1 connection pending */
+#define HIFC_FC_RES_B17     (1 << 17) /* reserved */
+#define HIFC_FC_SEQ_INIT    (1 << 16) /* transfer of sequence initiative */
+#define HIFC_FC_X_ID_REASS  (1 << 15) /* exchange ID has been changed */
+#define HIFC_FC_X_ID_INVAL  (1 << 14) /* exchange ID invalidated */
+#define HIFC_FC_ACK_1       (1 << 12) /* 13:12 = 1: ACK_1 expected */
+#define HIFC_FC_ACK_N       (2 << 12) /* 13:12 = 2: ACK_N expected */
+#define HIFC_FC_ACK_0       (3 << 12) /* 13:12 = 3: ACK_0 expected */
+#define HIFC_FC_RES_B11     (1 << 11) /* reserved */
+#define HIFC_FC_RES_B10     (1 << 10) /* reserved */
+#define HIFC_FC_RETX_SEQ    (1 << 9)  /* retransmitted sequence */
+#define HIFC_FC_UNI_TX      (1 << 8)  /* unidirectional transmit (class 1) */
+#define HIFC_FC_CONT_SEQ(i) ((i) << 6)
+#define HIFC_FC_ABT_SEQ(i)  ((i) << 4)
+#define HIFC_FC_REL_OFF     (1 << 3) /* parameter is relative offset */
+#define HIFC_FC_RES2        (1 << 2) /* reserved */
+#define HIFC_FC_FILL(i)     ((i) & 3)  /* 1:0: bytes of trailing fill */
+
+#define HIFC_FCTL_REQ     (HIFC_FC_FIRST_SEQ | HIFC_FC_END_SEQ |\
+	HIFC_FC_SEQ_INIT)
+#define HIFC_FCTL_RESP    (HIFC_FC_EX_CTX | HIFC_FC_LAST_SEQ | \
+	HIFC_FC_END_SEQ | HIFC_FC_SEQ_INIT)
+#define HIFC_RCTL_BLS_REQ   0x81
+#define HIFC_RCTL_BLS_ACC   0x84
+#define HIFC_RCTL_BLS_RJT   0x85
+
+#define UNF_IO_STATE_NEW          0
+#define TGT_IO_STATE_SEND_XFERRDY (1 << 2)
+#define TGT_IO_STATE_RSP          (1 << 5)
+#define TGT_IO_STATE_ABORT        (1 << 7)
+
+enum HIFC_FC_FH_TYPE_E {
+	HIFC_FC_TYPE_BLS = 0x00, /* basic link service */
+	HIFC_FC_TYPE_ELS = 0x01, /* extended link service */
+	HIFC_FC_TYPE_IP = 0x05,  /* IP over FC, RFC 4338 */
+	HIFC_FC_TYPE_FCP = 0x08, /* SCSI FCP */
+	HIFC_FC_TYPE_CT = 0x20,  /* Fibre Channel Services (FC-CT) */
+	HIFC_FC_TYPE_ILS = 0x22  /* internal link service */
+};
+
+enum HIFC_FC_FH_RCTL_E {
+	HIFC_FC_RCTL_DD_UNCAT = 0x00,	  /* uncategorized information */
+	HIFC_FC_RCTL_DD_SOL_DATA = 0x01,   /* solicited data */
+	HIFC_FC_RCTL_DD_UNSOL_CTL = 0x02,  /* unsolicited control */
+	HIFC_FC_RCTL_DD_SOL_CTL = 0x03,	/* solicited control or reply */
+	HIFC_FC_RCTL_DD_UNSOL_DATA = 0x04, /* unsolicited data */
+	HIFC_FC_RCTL_DD_DATA_DESC = 0x05,  /* data descriptor */
+	HIFC_FC_RCTL_DD_UNSOL_CMD = 0x06,  /* unsolicited command */
+	HIFC_FC_RCTL_DD_CMD_STATUS = 0x07, /* command status */
+
+#define HIFC_FC_RCTL_ILS_REQ HIFC_FC_RCTL_DD_UNSOL_CTL /* ILS request */
+#define HIFC_FC_RCTL_ILS_REP HIFC_FC_RCTL_DD_SOL_CTL   /* ILS reply */
+
+	/*
+	 * Extended Link_Data
+	 */
+	HIFC_FC_RCTL_ELS_REQ = 0x22,  /* extended link services request */
+	HIFC_FC_RCTL_ELS_RSP = 0x23,  /* extended link services reply */
+	HIFC_FC_RCTL_ELS4_REQ = 0x32, /* FC-4 ELS request */
+	HIFC_FC_RCTL_ELS4_RSP = 0x33, /* FC-4 ELS reply */
+	/*
+	 * Optional Extended Headers
+	 */
+	HIFC_FC_RCTL_VFTH = 0x50, /* virtual fabric tagging header */
+	HIFC_FC_RCTL_IFRH = 0x51, /* inter-fabric routing header */
+	HIFC_FC_RCTL_ENCH = 0x52, /* encapsulation header */
+	/*
+	 * Basic Link Services fh_r_ctl values.
+	 */
+	HIFC_FC_RCTL_BA_NOP = 0x80,  /* basic link service NOP */
+	HIFC_FC_RCTL_BA_ABTS = 0x81, /* basic link service abort */
+	HIFC_FC_RCTL_BA_RMC = 0x82,  /* remove connection */
+	HIFC_FC_RCTL_BA_ACC = 0x84,  /* basic accept */
+	HIFC_FC_RCTL_BA_RJT = 0x85,  /* basic reject */
+	HIFC_FC_RCTL_BA_PRMT = 0x86, /* dedicated connection preempted */
+	/*
+	 * Link Control Information.
+	 */
+	HIFC_FC_RCTL_ACK_1 = 0xc0,  /* acknowledge_1 */
+	HIFC_FC_RCTL_ACK_0 = 0xc1,  /* acknowledge_0 */
+	HIFC_FC_RCTL_P_RJT = 0xc2,  /* port reject */
+	HIFC_FC_RCTL_F_RJT = 0xc3,  /* fabric reject */
+	HIFC_FC_RCTL_P_BSY = 0xc4,  /* port busy */
+	HIFC_FC_RCTL_F_BSY = 0xc5,  /* fabric busy to data frame */
+	HIFC_FC_RCTL_F_BSYL = 0xc6, /* fabric busy to link control frame */
+	HIFC_FC_RCTL_LCR = 0xc7,	/* link credit reset */
+	HIFC_FC_RCTL_END = 0xc9	 /* end */
+};
+
+struct hifc_fc_frame_header {
+	unsigned char rctl;    /* routing control */
+	unsigned char did[3]; /* Destination ID */
+
+	unsigned char cs_ctl;   /* class of service control / pri */
+	unsigned char sid[3]; /* Source ID */
+
+	unsigned char type;     /* see enum fc_fh_type below */
+	unsigned char frame_ctl[3]; /* frame control */
+
+	unsigned char seq_id;   /* sequence ID */
+	unsigned char df_ctl;   /* data field control */
+	unsigned short seq_cnt; /* sequence count */
+
+	unsigned short ox_id;   /* originator exchange ID */
+	unsigned short rx_id;       /* responder exchange ID */
+	unsigned int parm_offset; /* parameter or relative offset */
+};
+
+unsigned int hifc_rcv_els_cmnd(const struct hifc_hba_s *v_hba,
+			       struct unf_frame_pkg_s *v_pkg,
+			       unsigned char *v_pld,
+			       unsigned int pld_len,
+			       int first_frame);
+unsigned int hifc_rcv_els_rsp(const struct hifc_hba_s *v_hba,
+			      struct unf_frame_pkg_s *v_pkg,
+			      unsigned int ox_id);
+unsigned int hifc_rcv_els_rsp_sts(const struct hifc_hba_s *v_hba,
+				  struct unf_frame_pkg_s *v_pkg,
+				  unsigned int rx_id);
+unsigned int hifc_rcv_gs_rsp(const struct hifc_hba_s *v_hba,
+			     struct unf_frame_pkg_s *v_pkg,
+			     unsigned int ox_id);
+unsigned int hifc_rcv_bls_rsp(const struct hifc_hba_s *v_hba,
+			      struct unf_frame_pkg_s *v_pkg,
+			      unsigned int ox_id);
+
+void hifc_save_login_para_in_sq_info(
+				struct hifc_hba_s *v_hba,
+				struct unf_port_login_parms_s *v_login_coparms);
+unsigned int hifc_handle_aeq_offload_err(struct hifc_hba_s *v_hba,
+					 struct hifcoe_aqe_data_s *v_aeg_msg);
+
+#define HIFC_CHECK_PKG_ALLOCTIME(v_pkg)  \
+	do {                                                               \
+		if (unlikely(UNF_GETXCHGALLOCTIME(v_pkg) == 0)) {          \
+			HIFC_TRACE(UNF_EVTLOG_DRIVER_WARN, UNF_LOG_NORMAL, \
+				   UNF_WARN,                               \
+				   "[warn]Invalid MagicNum,S_ID(0x%x) D_ID(0x%x) OXID(0x%x) RX_ID(0x%x) pkg type(0x%x) hot pooltag(0x%x)", \
+				   UNF_GET_SID(v_pkg),   \
+				   UNF_GET_DID(v_pkg),   \
+				   UNF_GET_OXID(v_pkg),  \
+				   UNF_GET_RXID(v_pkg),  \
+				   ((struct unf_frame_pkg_s *)v_pkg)->type, \
+				   UNF_GET_XCHG_TAG(v_pkg));         \
+				   }                                 \
+	} while (0)
+
+#endif
+

drivers/scsi/huawei/hifc/unf_disc.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/* Huawei Hifc PCI Express Linux driver
+ * Copyright(c) 2017 Huawei Technologies Co., Ltd
+ *
+ */
+#ifndef __UNF_DISC_H__
+#define __UNF_DISC_H__
+
+#define UNF_DISC_RETRY_TIMES 3
+#define UNF_DISC_NONE        0
+#define UNF_DISC_FABRIC      1
+#define UNF_DISC_LOOP        2
+
+enum unf_disc_state_e {
+	UNF_DISC_ST_START = 0x3000,
+	UNF_DISC_ST_GIDPT_WAIT,
+	UNF_DISC_ST_GIDFT_WAIT,
+	UNF_DISC_ST_END
+};
+
+enum unf_disc_event_e {
+	UNF_EVENT_DISC_NORMAL_ENTER = 0x8000,
+	UNF_EVENT_DISC_FAILED = 0x8001,
+	UNF_EVENT_DISC_SUCCESS = 0x8002,
+	UNF_EVENT_DISC_RETRY_TIMEOUT = 0x8003,
+	UNF_EVENT_DISC_LINKDOWN = 0x8004
+};
+
+enum unf_disc_type_e {
+	UNF_DISC_GET_PORT_NAME = 0,
+	UNF_DISC_GET_NODE_NAME,
+	UNF_DISC_GET_FEATURE
+};
+
+struct unf_disc_gs_event_info {
+	void *lport;
+	void *rport;
+	unsigned int rport_id;
+	enum unf_disc_type_e entype;
+	struct list_head list_entry;
+};
+
+unsigned int unf_get_and_post_disc_event(void *v_lport,
+					 void *v_sns_port,
+					 unsigned int v_nport_id,
+					 enum unf_disc_type_e v_en_type);
+
+void unf_flush_disc_event(void *v_disc, void *v_vport);
+void unf_disc_error_recovery(void *v_lport);
+void unf_disc_mgr_destroy(void *v_lport);
+void unf_disc_ctrl_size_inc(void *v_lport, unsigned int v_cmnd);
+
+#endif

drivers/scsi/huawei/hifc/unf_event.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/* Huawei Hifc PCI Express Linux driver
+ * Copyright(c) 2017 Huawei Technologies Co., Ltd
+ *
+ */
+#ifndef __UNF_EVENT_H__
+#define __UNF_EVENT_H__
+#include "hifc_knl_adp.h"
+
+enum unf_poll_flag {
+	UNF_POLL_CHIPERROR_FLAG = 0, /* CHIP ERROR POLL */
+	UNF_POLL_ERROR_CODE,         /* CODE ERROR POLL */
+	UNF_POLL_SFP_FLAG,           /* SFP POLL */
+	UNF_POLL_BUTT
+};
+
+#define UNF_MAX_EVENT_NODE 256
+
+enum unf_event_type {
+	UNF_EVENT_TYPE_ALARM = 0, /* Alarm */
+	UNF_EVENT_TYPE_REQUIRE,   /* Require */
+	UNF_EVENT_TYPE_RECOVERY,  /* Recovery */
+	UNF_EVENT_TYPE_BUTT
+};
+
+struct unf_cm_event_report {
+	/* event type */
+	unsigned int event;
+
+	/* ASY flag */
+	unsigned int event_asy_flag;
+
+	/* Delay times,must be async event */
+	unsigned int delay_times;
+
+	struct list_head list_entry;
+
+	void *lport;
+
+	/* parameter */
+	void *para_in;
+	void *para_out;
+	unsigned int result;
+
+	/* recovery strategy */
+	int (*pfn_unf_event_task)(void *v_argin, void *v_argout);
+
+	/* recovery strategy */
+	int (*pfn_unf_event_recovery_strategy)(void *);
+
+	/* alarm  strategy */
+	int (*pfn_unf_event_alarm_strategy)(void *);
+
+	struct completion event_comp;
+};
+
+struct unf_event_mgr {
+	spinlock_t port_event_lock;
+	unsigned int free_event_count;
+
+	struct list_head list_free_event;
+
+	struct completion *emg_completion;
+
+	void *pmem_add;
+	struct unf_cm_event_report *(*pfn_unf_get_free_event)(void *v_lport);
+	void (*pfn_unf_release_event)(void *v_lport, void *v_event_node);
+	void (*pfn_unf_post_event)(void *v_lport, void *v_event_node);
+};
+
+struct unf_global_event_queue {
+	void *global_event_add;
+	unsigned int list_number;
+	struct list_head global_eventlist;
+	spinlock_t global_eventlist_lock;
+};
+
+struct unf_event_list {
+	struct list_head list_head;
+	spinlock_t fc_eventlist_lock;
+	unsigned int list_num; /* list node number */
+};
+
+void unf_handle_event(struct unf_cm_event_report *v_event_node);
+unsigned int unf_init_global_event_msg(void);
+void unf_destroy_global_event_msg(void);
+unsigned int unf_schedule_global_event(
+		void *v_para,
+		unsigned int v_event_asy_flag,
+		int (*pfn_unf_event_task)(void *v_argin, void *v_argout));
+
+struct unf_cm_event_report *unf_get_one_event_node(void *v_lport);
+void unf_post_one_event_node(void *v_lport,
+			     struct unf_cm_event_report *v_event);
+unsigned int unf_event_center_destroy(void *v_lport);
+unsigned int unf_init_event_center(void *v_lport);
+
+extern struct task_struct *event_thread;
+extern struct unf_global_event_queue global_event_queue;
+extern struct unf_event_list fc_event_list;
+#endif

drivers/scsi/huawei/hifc/unf_service.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/* Huawei Hifc PCI Express Linux driver
+ * Copyright(c) 2017 Huawei Technologies Co., Ltd
+ *
+ */
+#ifndef __UNF_SERVICE_H__
+#define __UNF_SERVICE_H__
+
+extern unsigned int max_frame_size;
+
+#define UNF_SET_ELS_ACC_TYPE(v_els_cmd) \
+		((unsigned int)(v_els_cmd) << 16 | ELS_ACC)
+#define UNF_SET_ELS_RJT_TYPE(v_els_cmd) \
+		((unsigned int)(v_els_cmd) << 16 | ELS_RJT)
+
+unsigned int unf_send_gid_ft(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_rport);
+unsigned int unf_send_gid_pt(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_rport);
+unsigned int unf_send_gpn_id(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_sns_port,
+			     unsigned int v_nport_id);
+unsigned int unf_send_gnn_id(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_sns_port,
+			     unsigned int v_nport_id);
+unsigned int unf_send_gff_id(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_sns_port,
+			     unsigned int v_nport_id);
+unsigned int unf_send_flogi(struct unf_lport_s *v_lport,
+			    struct unf_rport_s *v_rport);
+unsigned int unf_send_fdisc(struct unf_lport_s *v_lport,
+			    struct unf_rport_s *v_rport);
+unsigned int unf_send_plogi(struct unf_lport_s *v_lport,
+			    struct unf_rport_s *v_rport);
+unsigned int unf_send_prli(struct unf_lport_s *v_lport,
+			   struct unf_rport_s *v_rport);
+unsigned int unf_receive_els_pkg(void *v_lport,
+				 struct unf_frame_pkg_s *v_fra_pkg);
+unsigned int unf_send_rff_id(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_rport);
+unsigned int unf_send_rft_id(struct unf_lport_s *v_lport,
+			     struct unf_rport_s *v_rport);
+unsigned int unf_send_logo(struct unf_lport_s *v_lport,
+			   struct unf_rport_s *v_rport);
+unsigned int unf_send_echo(struct unf_lport_s *v_lport,
+			   struct unf_rport_s *v_rport,
+			   unsigned int *v_time);
+unsigned int unf_send_abts(struct unf_lport_s *v_lport,
+			   struct unf_xchg_s *v_xchg);
+unsigned int unf_send_scr(struct unf_lport_s *v_lport,
+			  struct unf_rport_s *v_rport);
+unsigned int unf_send_rrq(struct unf_lport_s *v_lport,
+			  struct unf_rport_s *v_rport,
+			  struct unf_xchg_s *v_xchg);
+void unf_rport_immediate_linkdown(struct unf_lport_s *v_lport,
+				  struct unf_rport_s *v_rport);
+unsigned int unf_receive_bls_pkg(void *v_lport,
+				 struct unf_frame_pkg_s *v_pkg);
+struct unf_rport_s *unf_find_rport(struct unf_lport_s *v_lport,
+				   unsigned int v_rport_nport_id,
+				   unsigned long long v_port_name);
+void unf_login_with_loop_node(struct unf_lport_s *v_lport, unsigned int alpa);
+unsigned int unf_receive_gs_pkg(void *v_lport,
+				struct unf_frame_pkg_s *v_fra_pkg);
+void unf_rcv_gnn_id_rsp_unknown(struct unf_lport_s *v_lport,
+				struct unf_rport_s *v_sns_port,
+				unsigned int v_nport_id);
+void unf_rcv_gpn_id_rsp_unknown(struct unf_lport_s *v_lport,
+				unsigned int v_nport_id);
+void unf_rcv_gff_id_rsp_unknown(struct unf_lport_s *v_lport,
+				unsigned int v_nport_id);
+unsigned int unf_release_rport_res(struct unf_lport_s *v_lport,
+				   struct unf_rport_s *v_rport);
+
+unsigned int unf_low_level_bbscn(struct unf_lport_s *v_lport);
+unsigned int unf_send_els_done(void *v_lport, struct unf_frame_pkg_s *v_pkg);
+unsigned int unf_send_rec(struct unf_lport_s *v_lport,
+			  struct unf_rport_s *v_rport,
+			  struct unf_xchg_s *v_xchg);
+
+typedef int (*unf_evt_task)(void *v_arg_in, void *v_arg_out);
+
+#endif /* __UNF_SERVICE_H__ */