mirror of https://gitee.com/openkylin/linux.git
589 lines
16 KiB
C
589 lines
16 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2015 Linaro Ltd.
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* Copyright (c) 2015 Hisilicon Limited.
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*/
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#ifndef _HISI_SAS_H_
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#define _HISI_SAS_H_
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#include <linux/acpi.h>
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#include <linux/clk.h>
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#include <linux/debugfs.h>
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#include <linux/dmapool.h>
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#include <linux/iopoll.h>
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#include <linux/lcm.h>
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#include <linux/libata.h>
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/of_address.h>
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#include <linux/pci.h>
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#include <linux/platform_device.h>
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#include <linux/property.h>
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#include <linux/regmap.h>
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#include <scsi/sas_ata.h>
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#include <scsi/libsas.h>
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#define HISI_SAS_MAX_PHYS 9
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#define HISI_SAS_MAX_QUEUES 32
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#define HISI_SAS_QUEUE_SLOTS 4096
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#define HISI_SAS_MAX_ITCT_ENTRIES 1024
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#define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES
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#define HISI_SAS_RESET_BIT 0
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#define HISI_SAS_REJECT_CMD_BIT 1
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#define HISI_SAS_MAX_COMMANDS (HISI_SAS_QUEUE_SLOTS)
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#define HISI_SAS_RESERVED_IPTT 96
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#define HISI_SAS_UNRESERVED_IPTT \
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(HISI_SAS_MAX_COMMANDS - HISI_SAS_RESERVED_IPTT)
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#define HISI_SAS_IOST_ITCT_CACHE_NUM 64
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#define HISI_SAS_IOST_ITCT_CACHE_DW_SZ 10
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#define HISI_SAS_STATUS_BUF_SZ (sizeof(struct hisi_sas_status_buffer))
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#define HISI_SAS_COMMAND_TABLE_SZ (sizeof(union hisi_sas_command_table))
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#define hisi_sas_status_buf_addr(buf) \
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((buf) + offsetof(struct hisi_sas_slot_buf_table, status_buffer))
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#define hisi_sas_status_buf_addr_mem(slot) hisi_sas_status_buf_addr((slot)->buf)
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#define hisi_sas_status_buf_addr_dma(slot) \
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hisi_sas_status_buf_addr((slot)->buf_dma)
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#define hisi_sas_cmd_hdr_addr(buf) \
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((buf) + offsetof(struct hisi_sas_slot_buf_table, command_header))
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#define hisi_sas_cmd_hdr_addr_mem(slot) hisi_sas_cmd_hdr_addr((slot)->buf)
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#define hisi_sas_cmd_hdr_addr_dma(slot) hisi_sas_cmd_hdr_addr((slot)->buf_dma)
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#define hisi_sas_sge_addr(buf) \
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((buf) + offsetof(struct hisi_sas_slot_buf_table, sge_page))
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#define hisi_sas_sge_addr_mem(slot) hisi_sas_sge_addr((slot)->buf)
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#define hisi_sas_sge_addr_dma(slot) hisi_sas_sge_addr((slot)->buf_dma)
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#define hisi_sas_sge_dif_addr(buf) \
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((buf) + offsetof(struct hisi_sas_slot_dif_buf_table, sge_dif_page))
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#define hisi_sas_sge_dif_addr_mem(slot) hisi_sas_sge_dif_addr((slot)->buf)
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#define hisi_sas_sge_dif_addr_dma(slot) hisi_sas_sge_dif_addr((slot)->buf_dma)
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#define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
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#define HISI_SAS_MAX_SMP_RESP_SZ 1028
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#define HISI_SAS_MAX_STP_RESP_SZ 28
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#define HISI_SAS_SATA_PROTOCOL_NONDATA 0x1
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#define HISI_SAS_SATA_PROTOCOL_PIO 0x2
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#define HISI_SAS_SATA_PROTOCOL_DMA 0x4
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#define HISI_SAS_SATA_PROTOCOL_FPDMA 0x8
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#define HISI_SAS_SATA_PROTOCOL_ATAPI 0x10
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#define HISI_SAS_DIF_PROT_MASK (SHOST_DIF_TYPE1_PROTECTION | \
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SHOST_DIF_TYPE2_PROTECTION | \
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SHOST_DIF_TYPE3_PROTECTION)
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#define HISI_SAS_DIX_PROT_MASK (SHOST_DIX_TYPE1_PROTECTION | \
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SHOST_DIX_TYPE2_PROTECTION | \
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SHOST_DIX_TYPE3_PROTECTION)
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#define HISI_SAS_PROT_MASK (HISI_SAS_DIF_PROT_MASK | HISI_SAS_DIX_PROT_MASK)
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#define HISI_SAS_WAIT_PHYUP_TIMEOUT 20
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struct hisi_hba;
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enum {
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PORT_TYPE_SAS = (1U << 1),
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PORT_TYPE_SATA = (1U << 0),
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};
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enum dev_status {
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HISI_SAS_DEV_INIT,
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HISI_SAS_DEV_NORMAL,
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};
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enum {
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HISI_SAS_INT_ABT_CMD = 0,
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HISI_SAS_INT_ABT_DEV = 1,
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};
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enum hisi_sas_dev_type {
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HISI_SAS_DEV_TYPE_STP = 0,
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HISI_SAS_DEV_TYPE_SSP,
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HISI_SAS_DEV_TYPE_SATA,
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};
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struct hisi_sas_hw_error {
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u32 irq_msk;
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u32 msk;
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int shift;
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const char *msg;
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int reg;
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const struct hisi_sas_hw_error *sub;
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};
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struct hisi_sas_rst {
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struct hisi_hba *hisi_hba;
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struct completion *completion;
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struct work_struct work;
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bool done;
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};
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#define HISI_SAS_RST_WORK_INIT(r, c) \
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{ .hisi_hba = hisi_hba, \
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.completion = &c, \
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.work = __WORK_INITIALIZER(r.work, \
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hisi_sas_sync_rst_work_handler), \
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.done = false, \
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}
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#define HISI_SAS_DECLARE_RST_WORK_ON_STACK(r) \
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DECLARE_COMPLETION_ONSTACK(c); \
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struct hisi_sas_rst r = HISI_SAS_RST_WORK_INIT(r, c)
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enum hisi_sas_bit_err_type {
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HISI_SAS_ERR_SINGLE_BIT_ECC = 0x0,
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HISI_SAS_ERR_MULTI_BIT_ECC = 0x1,
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};
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enum hisi_sas_phy_event {
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HISI_PHYE_PHY_UP = 0U,
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HISI_PHYE_LINK_RESET,
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HISI_PHYES_NUM,
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};
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struct hisi_sas_phy {
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struct work_struct works[HISI_PHYES_NUM];
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struct hisi_hba *hisi_hba;
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struct hisi_sas_port *port;
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struct asd_sas_phy sas_phy;
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struct sas_identify identify;
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struct completion *reset_completion;
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struct timer_list timer;
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spinlock_t lock;
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u64 port_id; /* from hw */
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u64 frame_rcvd_size;
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u8 frame_rcvd[32];
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u8 phy_attached;
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u8 in_reset;
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u8 reserved[2];
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u32 phy_type;
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u32 code_violation_err_count;
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enum sas_linkrate minimum_linkrate;
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enum sas_linkrate maximum_linkrate;
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int enable;
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};
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struct hisi_sas_port {
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struct asd_sas_port sas_port;
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u8 port_attached;
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u8 id; /* from hw */
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};
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struct hisi_sas_cq {
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struct hisi_hba *hisi_hba;
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const struct cpumask *pci_irq_mask;
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struct tasklet_struct tasklet;
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int rd_point;
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int id;
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};
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struct hisi_sas_dq {
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struct hisi_hba *hisi_hba;
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struct list_head list;
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spinlock_t lock;
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int wr_point;
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int id;
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};
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struct hisi_sas_device {
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struct hisi_hba *hisi_hba;
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struct domain_device *sas_device;
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struct completion *completion;
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struct hisi_sas_dq *dq;
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struct list_head list;
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enum sas_device_type dev_type;
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enum dev_status dev_status;
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int device_id;
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int sata_idx;
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spinlock_t lock; /* For protecting slots */
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};
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struct hisi_sas_tmf_task {
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int force_phy;
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int phy_id;
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u8 tmf;
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u16 tag_of_task_to_be_managed;
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};
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struct hisi_sas_slot {
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struct list_head entry;
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struct list_head delivery;
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struct sas_task *task;
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struct hisi_sas_port *port;
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u64 n_elem;
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u64 n_elem_dif;
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int dlvry_queue;
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int dlvry_queue_slot;
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int cmplt_queue;
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int cmplt_queue_slot;
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int abort;
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int ready;
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int device_id;
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void *cmd_hdr;
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dma_addr_t cmd_hdr_dma;
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struct timer_list internal_abort_timer;
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bool is_internal;
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struct hisi_sas_tmf_task *tmf;
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/* Do not reorder/change members after here */
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void *buf;
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dma_addr_t buf_dma;
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u16 idx;
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};
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#define HISI_SAS_DEBUGFS_REG(x) {#x, x}
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struct hisi_sas_debugfs_reg_lu {
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char *name;
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int off;
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};
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struct hisi_sas_debugfs_reg {
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const struct hisi_sas_debugfs_reg_lu *lu;
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int count;
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int base_off;
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union {
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u32 (*read_global_reg)(struct hisi_hba *hisi_hba, u32 off);
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u32 (*read_port_reg)(struct hisi_hba *hisi_hba, int port,
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u32 off);
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};
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};
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struct hisi_sas_iost_itct_cache {
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u32 data[HISI_SAS_IOST_ITCT_CACHE_DW_SZ];
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};
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enum hisi_sas_debugfs_reg_array_member {
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DEBUGFS_GLOBAL = 0,
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DEBUGFS_AXI,
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DEBUGFS_RAS,
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DEBUGFS_REGS_NUM
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};
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enum hisi_sas_debugfs_cache_type {
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HISI_SAS_ITCT_CACHE,
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HISI_SAS_IOST_CACHE,
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};
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struct hisi_sas_hw {
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int (*hw_init)(struct hisi_hba *hisi_hba);
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void (*setup_itct)(struct hisi_hba *hisi_hba,
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struct hisi_sas_device *device);
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int (*slot_index_alloc)(struct hisi_hba *hisi_hba,
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struct domain_device *device);
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struct hisi_sas_device *(*alloc_dev)(struct domain_device *device);
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void (*sl_notify_ssp)(struct hisi_hba *hisi_hba, int phy_no);
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void (*start_delivery)(struct hisi_sas_dq *dq);
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void (*prep_ssp)(struct hisi_hba *hisi_hba,
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struct hisi_sas_slot *slot);
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void (*prep_smp)(struct hisi_hba *hisi_hba,
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struct hisi_sas_slot *slot);
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void (*prep_stp)(struct hisi_hba *hisi_hba,
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struct hisi_sas_slot *slot);
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void (*prep_abort)(struct hisi_hba *hisi_hba,
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struct hisi_sas_slot *slot,
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int device_id, int abort_flag, int tag_to_abort);
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void (*phys_init)(struct hisi_hba *hisi_hba);
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void (*phy_start)(struct hisi_hba *hisi_hba, int phy_no);
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void (*phy_disable)(struct hisi_hba *hisi_hba, int phy_no);
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void (*phy_hard_reset)(struct hisi_hba *hisi_hba, int phy_no);
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void (*get_events)(struct hisi_hba *hisi_hba, int phy_no);
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void (*phy_set_linkrate)(struct hisi_hba *hisi_hba, int phy_no,
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struct sas_phy_linkrates *linkrates);
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enum sas_linkrate (*phy_get_max_linkrate)(void);
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void (*clear_itct)(struct hisi_hba *hisi_hba,
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struct hisi_sas_device *dev);
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void (*free_device)(struct hisi_sas_device *sas_dev);
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int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
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void (*dereg_device)(struct hisi_hba *hisi_hba,
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struct domain_device *device);
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int (*soft_reset)(struct hisi_hba *hisi_hba);
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u32 (*get_phys_state)(struct hisi_hba *hisi_hba);
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int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type,
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u8 reg_index, u8 reg_count, u8 *write_data);
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void (*wait_cmds_complete_timeout)(struct hisi_hba *hisi_hba,
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int delay_ms, int timeout_ms);
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void (*snapshot_prepare)(struct hisi_hba *hisi_hba);
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void (*snapshot_restore)(struct hisi_hba *hisi_hba);
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void (*read_iost_itct_cache)(struct hisi_hba *hisi_hba,
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enum hisi_sas_debugfs_cache_type type,
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u32 *cache);
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int complete_hdr_size;
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struct scsi_host_template *sht;
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const struct hisi_sas_debugfs_reg *debugfs_reg_array[DEBUGFS_REGS_NUM];
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const struct hisi_sas_debugfs_reg *debugfs_reg_port;
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};
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struct hisi_hba {
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/* This must be the first element, used by SHOST_TO_SAS_HA */
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struct sas_ha_struct *p;
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struct platform_device *platform_dev;
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struct pci_dev *pci_dev;
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struct device *dev;
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int prot_mask;
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void __iomem *regs;
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void __iomem *sgpio_regs;
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struct regmap *ctrl;
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u32 ctrl_reset_reg;
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u32 ctrl_reset_sts_reg;
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u32 ctrl_clock_ena_reg;
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u32 refclk_frequency_mhz;
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u8 sas_addr[SAS_ADDR_SIZE];
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int n_phy;
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spinlock_t lock;
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struct semaphore sem;
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struct timer_list timer;
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struct workqueue_struct *wq;
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int slot_index_count;
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int last_slot_index;
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int last_dev_id;
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unsigned long *slot_index_tags;
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unsigned long reject_stp_links_msk;
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/* SCSI/SAS glue */
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struct sas_ha_struct sha;
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struct Scsi_Host *shost;
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struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
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struct hisi_sas_dq dq[HISI_SAS_MAX_QUEUES];
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struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
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struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
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int queue_count;
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struct hisi_sas_device devices[HISI_SAS_MAX_DEVICES];
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struct hisi_sas_cmd_hdr *cmd_hdr[HISI_SAS_MAX_QUEUES];
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dma_addr_t cmd_hdr_dma[HISI_SAS_MAX_QUEUES];
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void *complete_hdr[HISI_SAS_MAX_QUEUES];
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dma_addr_t complete_hdr_dma[HISI_SAS_MAX_QUEUES];
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struct hisi_sas_initial_fis *initial_fis;
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dma_addr_t initial_fis_dma;
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struct hisi_sas_itct *itct;
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dma_addr_t itct_dma;
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struct hisi_sas_iost *iost;
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dma_addr_t iost_dma;
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struct hisi_sas_breakpoint *breakpoint;
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dma_addr_t breakpoint_dma;
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struct hisi_sas_breakpoint *sata_breakpoint;
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dma_addr_t sata_breakpoint_dma;
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struct hisi_sas_slot *slot_info;
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unsigned long flags;
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const struct hisi_sas_hw *hw; /* Low level hw interface */
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unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)];
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struct work_struct rst_work;
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struct work_struct debugfs_work;
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u32 phy_state;
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u32 intr_coal_ticks; /* Time of interrupt coalesce in us */
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u32 intr_coal_count; /* Interrupt count to coalesce */
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int cq_nvecs;
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unsigned int *reply_map;
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/* debugfs memories */
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/* Put Global AXI and RAS Register into register array */
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u32 *debugfs_regs[DEBUGFS_REGS_NUM];
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u32 *debugfs_port_reg[HISI_SAS_MAX_PHYS];
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void *debugfs_complete_hdr[HISI_SAS_MAX_QUEUES];
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struct hisi_sas_cmd_hdr *debugfs_cmd_hdr[HISI_SAS_MAX_QUEUES];
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struct hisi_sas_iost *debugfs_iost;
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struct hisi_sas_itct *debugfs_itct;
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u64 *debugfs_iost_cache;
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u64 *debugfs_itct_cache;
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struct dentry *debugfs_dir;
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struct dentry *debugfs_dump_dentry;
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bool debugfs_snapshot;
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};
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/* Generic HW DMA host memory structures */
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/* Delivery queue header */
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struct hisi_sas_cmd_hdr {
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/* dw0 */
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__le32 dw0;
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/* dw1 */
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__le32 dw1;
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/* dw2 */
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__le32 dw2;
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/* dw3 */
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__le32 transfer_tags;
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/* dw4 */
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__le32 data_transfer_len;
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/* dw5 */
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__le32 first_burst_num;
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/* dw6 */
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__le32 sg_len;
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/* dw7 */
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__le32 dw7;
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/* dw8-9 */
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__le64 cmd_table_addr;
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/* dw10-11 */
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__le64 sts_buffer_addr;
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/* dw12-13 */
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__le64 prd_table_addr;
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/* dw14-15 */
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__le64 dif_prd_table_addr;
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};
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struct hisi_sas_itct {
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__le64 qw0;
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__le64 sas_addr;
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__le64 qw2;
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|
__le64 qw3;
|
|
__le64 qw4_15[12];
|
|
};
|
|
|
|
struct hisi_sas_iost {
|
|
__le64 qw0;
|
|
__le64 qw1;
|
|
__le64 qw2;
|
|
__le64 qw3;
|
|
};
|
|
|
|
struct hisi_sas_err_record {
|
|
u32 data[4];
|
|
};
|
|
|
|
struct hisi_sas_initial_fis {
|
|
struct hisi_sas_err_record err_record;
|
|
struct dev_to_host_fis fis;
|
|
u32 rsvd[3];
|
|
};
|
|
|
|
struct hisi_sas_breakpoint {
|
|
u8 data[128];
|
|
};
|
|
|
|
struct hisi_sas_sata_breakpoint {
|
|
struct hisi_sas_breakpoint tag[32];
|
|
};
|
|
|
|
struct hisi_sas_sge {
|
|
__le64 addr;
|
|
__le32 page_ctrl_0;
|
|
__le32 page_ctrl_1;
|
|
__le32 data_len;
|
|
__le32 data_off;
|
|
};
|
|
|
|
struct hisi_sas_command_table_smp {
|
|
u8 bytes[44];
|
|
};
|
|
|
|
struct hisi_sas_command_table_stp {
|
|
struct host_to_dev_fis command_fis;
|
|
u8 dummy[12];
|
|
u8 atapi_cdb[ATAPI_CDB_LEN];
|
|
};
|
|
|
|
#define HISI_SAS_SGE_PAGE_CNT (124)
|
|
struct hisi_sas_sge_page {
|
|
struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
|
|
} __aligned(16);
|
|
|
|
#define HISI_SAS_SGE_DIF_PAGE_CNT HISI_SAS_SGE_PAGE_CNT
|
|
struct hisi_sas_sge_dif_page {
|
|
struct hisi_sas_sge sge[HISI_SAS_SGE_DIF_PAGE_CNT];
|
|
} __aligned(16);
|
|
|
|
struct hisi_sas_command_table_ssp {
|
|
struct ssp_frame_hdr hdr;
|
|
union {
|
|
struct {
|
|
struct ssp_command_iu task;
|
|
u32 prot[7];
|
|
};
|
|
struct ssp_tmf_iu ssp_task;
|
|
struct xfer_rdy_iu xfer_rdy;
|
|
struct ssp_response_iu ssp_res;
|
|
} u;
|
|
};
|
|
|
|
union hisi_sas_command_table {
|
|
struct hisi_sas_command_table_ssp ssp;
|
|
struct hisi_sas_command_table_smp smp;
|
|
struct hisi_sas_command_table_stp stp;
|
|
} __aligned(16);
|
|
|
|
struct hisi_sas_status_buffer {
|
|
struct hisi_sas_err_record err;
|
|
u8 iu[1024];
|
|
} __aligned(16);
|
|
|
|
struct hisi_sas_slot_buf_table {
|
|
struct hisi_sas_status_buffer status_buffer;
|
|
union hisi_sas_command_table command_header;
|
|
struct hisi_sas_sge_page sge_page;
|
|
};
|
|
|
|
struct hisi_sas_slot_dif_buf_table {
|
|
struct hisi_sas_slot_buf_table slot_buf;
|
|
struct hisi_sas_sge_dif_page sge_dif_page;
|
|
};
|
|
|
|
extern struct scsi_transport_template *hisi_sas_stt;
|
|
|
|
extern bool hisi_sas_debugfs_enable;
|
|
extern struct dentry *hisi_sas_debugfs_dir;
|
|
|
|
extern void hisi_sas_stop_phys(struct hisi_hba *hisi_hba);
|
|
extern int hisi_sas_alloc(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_free(struct hisi_hba *hisi_hba);
|
|
extern u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis,
|
|
int direction);
|
|
extern struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port);
|
|
extern void hisi_sas_sata_done(struct sas_task *task,
|
|
struct hisi_sas_slot *slot);
|
|
extern int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba);
|
|
extern int hisi_sas_probe(struct platform_device *pdev,
|
|
const struct hisi_sas_hw *ops);
|
|
extern int hisi_sas_remove(struct platform_device *pdev);
|
|
|
|
extern int hisi_sas_slave_configure(struct scsi_device *sdev);
|
|
extern int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time);
|
|
extern void hisi_sas_scan_start(struct Scsi_Host *shost);
|
|
extern int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type);
|
|
extern void hisi_sas_phy_enable(struct hisi_hba *hisi_hba, int phy_no,
|
|
int enable);
|
|
extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy);
|
|
extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
|
|
struct sas_task *task,
|
|
struct hisi_sas_slot *slot);
|
|
extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_rst_work_handler(struct work_struct *work);
|
|
extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
|
|
extern void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no);
|
|
extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
|
|
enum hisi_sas_phy_event event);
|
|
extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba);
|
|
extern u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max);
|
|
extern void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba);
|
|
extern void hisi_sas_debugfs_work_handler(struct work_struct *work);
|
|
#endif
|