181 lines
5.9 KiB
C
181 lines
5.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2017-2018 Samsung Electronics Co., Ltd.
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*/
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#ifndef _UFSFEATURE_H_
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#define _UFSFEATURE_H_
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#include "ufs.h"
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#include <scsi/ufs/ufs-mtk-ioctl.h>
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#if defined(CONFIG_SCSI_UFS_HPB)
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#include "ufshpb.h"
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#endif
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#include <scsi/scsi_cmnd.h>
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#if defined(CONFIG_SCSI_UFS_TW)
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#include "ufstw.h"
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#endif
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/* Constant value*/
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#define SECTOR 512
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#define BLOCK 4096
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#define SECTORS_PER_BLOCK (BLOCK / SECTOR)
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#define BITS_PER_DWORD 32
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#define IOCTL_DEV_CTX_MAX_SIZE OS_PAGE_SIZE
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#define OS_PAGE_SIZE 4096
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#define OS_PAGE_SHIFT 12
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#define UFSF_QUERY_REQ_RETRIES 1
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/* Description */
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#define UFSF_QUERY_DESC_DEVICE_MAX_SIZE 0x57
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#define UFSF_QUERY_DESC_CONFIGURAION_MAX_SIZE 0xE2
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#define UFSF_QUERY_DESC_UNIT_MAX_SIZE 0x2D
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#define UFSF_QUERY_DESC_GEOMETRY_MAX_SIZE 0x58
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#define UFSFEATURE_SELECTOR 0x01
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/* Extended UFS Feature Support */
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#define UFSF_EFS_TURBO_WRITE 0x100
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/* query_flag */
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#define MASK_QUERY_UPIU_FLAG_LOC 0xFF
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/* BIG -> LI */
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#define LI_EN_16(x) be16_to_cpu(*(__be16 *)(x))
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#define LI_EN_32(x) be32_to_cpu(*(__be32 *)(x))
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#define LI_EN_64(x) be64_to_cpu(*(__be64 *)(x))
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/* LI -> BIG */
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#define GET_BYTE_0(num) (((num) >> 0) & 0xff)
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#define GET_BYTE_1(num) (((num) >> 8) & 0xff)
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#define GET_BYTE_2(num) (((num) >> 16) & 0xff)
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#define GET_BYTE_3(num) (((num) >> 24) & 0xff)
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#define GET_BYTE_4(num) (((num) >> 32) & 0xff)
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#define GET_BYTE_5(num) (((num) >> 40) & 0xff)
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#define GET_BYTE_6(num) (((num) >> 48) & 0xff)
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#define GET_BYTE_7(num) (((num) >> 56) & 0xff)
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#define INFO_MSG(msg, args...) printk(KERN_INFO "%s:%d " msg "\n", \
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__func__, __LINE__, ##args)
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#define INIT_INFO(msg, args...) INFO_MSG(msg, ##args)
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#define RELEASE_INFO(msg, args...) INFO_MSG(msg, ##args)
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#define SYSFS_INFO(msg, args...) INFO_MSG(msg, ##args)
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#define ERR_MSG(msg, args...) printk(KERN_ERR "%s:%d " msg "\n", \
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__func__, __LINE__, ##args)
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#define WARNING_MSG(msg, args...) printk(KERN_WARNING "%s:%d " msg "\n", \
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__func__, __LINE__, ##args)
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#define seq_scan_lu(lun) for (lun = 0; lun < UFS_UPIU_MAX_GENERAL_LUN; lun++)
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#define TMSG(ufsf, lun, msg, args...) \
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do { if (ufsf->sdev_ufs_lu[lun] && \
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ufsf->sdev_ufs_lu[lun]->request_queue) \
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blk_add_trace_msg( \
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ufsf->sdev_ufs_lu[lun]->request_queue, \
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msg, ##args); \
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} while (0) \
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struct ufsf_lu_desc {
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/* Common info */
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int lu_enable; /* 03h bLUEnable */
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int lu_queue_depth; /* 06h lu queue depth info*/
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int lu_logblk_size; /* 0Ah bLogicalBlockSize. default 0x0C = 4KB */
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u64 lu_logblk_cnt; /* 0Bh qLogicalBlockCount. */
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#if defined(CONFIG_SCSI_UFS_HPB)
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u16 lu_max_active_hpb_rgns; /* 23h:24h wLUMaxActiveHPBRegions */
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u16 lu_hpb_pinned_rgn_startidx; /* 25h:26h wHPBPinnedRegionStartIdx */
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u16 lu_num_hpb_pinned_rgns; /* 27h:28h wNumHPBPinnedRegions */
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int lu_hpb_pinned_end_offset;
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#endif
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#if defined(CONFIG_SCSI_UFS_TW)
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unsigned int tw_lu_buf_size;
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#endif
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};
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struct ufsf_feature {
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struct ufs_hba *hba;
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int num_lu;
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int slave_conf_cnt;
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struct scsi_device *sdev_ufs_lu[UFS_UPIU_MAX_GENERAL_LUN];
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#if defined(CONFIG_SCSI_UFS_HPB)
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struct ufshpb_dev_info hpb_dev_info;
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struct ufshpb_lu *ufshpb_lup[UFS_UPIU_MAX_GENERAL_LUN];
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struct work_struct ufshpb_init_work;
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struct work_struct ufshpb_reset_work;
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struct work_struct ufshpb_eh_work;
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wait_queue_head_t wait_hpb;
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int ufshpb_state;
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struct kref ufshpb_kref;
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bool issue_ioctl;
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#endif
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#if defined(CONFIG_SCSI_UFS_TW)
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struct ufstw_dev_info tw_dev_info;
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struct ufstw_lu *tw_lup[UFS_UPIU_MAX_GENERAL_LUN];
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struct work_struct tw_init_work;
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struct work_struct tw_reset_work;
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wait_queue_head_t tw_wait;
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atomic_t tw_state;
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struct kref tw_kref;
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/* turbo write exception event control */
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bool tw_ee_mode;
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/* for debug */
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bool tw_debug;
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int tw_debug_no;
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atomic64_t tw_debug_ee_count;
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#endif
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};
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struct ufs_hba;
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struct ufshcd_lrb;
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void ufsf_device_check(struct ufs_hba *hba);
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int ufsf_check_query(__u32 opcode);
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int ufsf_query_ioctl(struct ufsf_feature *ufsf, unsigned int lun,
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void __user *buffer,
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struct ufs_ioctl_query_data_hpb *ioctl_data,
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u8 selector);
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int ufsf_query_flag_retry(struct ufs_hba *hba, enum query_opcode opcode,
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enum flag_idn idn, u8 idx, bool *flag_res);
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int ufsf_query_attr_retry(struct ufs_hba *hba, enum query_opcode opcode,
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enum attr_idn idn, u8 idx, u32 *attr_val);
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bool ufsf_is_valid_lun(int lun);
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int ufsf_get_ee_status(struct ufs_hba *hba, u32 *status);
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/* for hpb */
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int ufsf_hpb_prepare_pre_req(struct ufsf_feature *ufsf, struct scsi_cmnd *cmd,
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int lun);
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int ufsf_hpb_prepare_add_lrbp(struct ufsf_feature *ufsf, int add_tag);
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void ufsf_hpb_end_pre_req(struct ufsf_feature *ufsf, struct request *req);
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void ufsf_hpb_change_lun(struct ufsf_feature *ufsf, struct ufshcd_lrb *lrbp);
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void ufsf_hpb_prep_fn(struct ufsf_feature *ufsf, struct ufshcd_lrb *lrbp);
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void ufsf_hpb_noti_rb(struct ufsf_feature *ufsf, struct ufshcd_lrb *lrbp);
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void ufsf_hpb_reset_lu(struct ufsf_feature *ufsf);
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void ufsf_hpb_reset_host(struct ufsf_feature *ufsf);
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void ufsf_hpb_init(struct ufsf_feature *ufsf);
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void ufsf_hpb_reset(struct ufsf_feature *ufsf);
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void ufsf_hpb_suspend(struct ufsf_feature *ufsf);
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void ufsf_hpb_resume(struct ufsf_feature *ufsf);
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void ufsf_hpb_release(struct ufsf_feature *ufsf);
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void ufsf_hpb_set_init_state(struct ufsf_feature *ufsf);
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/* for tw*/
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void ufsf_tw_prep_fn(struct ufsf_feature *ufsf, struct ufshcd_lrb *lrbp);
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void ufsf_tw_init(struct ufsf_feature *ufsf);
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void ufsf_tw_reset(struct ufsf_feature *ufsf);
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int ufsf_tw_check_flush(struct ufsf_feature *ufsf);
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void ufsf_tw_suspend(struct ufsf_feature *ufsf);
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void ufsf_tw_resume(struct ufsf_feature *ufsf);
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void ufsf_tw_release(struct ufsf_feature *ufsf);
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void ufsf_tw_set_init_state(struct ufsf_feature *ufsf);
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void ufsf_tw_reset_lu(struct ufsf_feature *ufsf);
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void ufsf_tw_reset_host(struct ufsf_feature *ufsf);
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void ufsf_tw_ee_handler(struct ufsf_feature *ufsf);
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#endif /* End of Header */
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