2a8b36a496
This commit adds support for ufs logical unit. The LU handles processing for the SCSI command, unit descriptor query request. This commit enables the UFS device to process IO requests. Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: beacc504376ab6a14b1a3830bb3c69382cf6aebc.1693980783.git.jeuk20.kim@gmail.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
/*
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* QEMU UFS
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*
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* Copyright (c) 2023 Samsung Electronics Co., Ltd. All rights reserved.
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*
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* Written by Jeuk Kim <jeuk20.kim@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_UFS_UFS_H
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#define HW_UFS_UFS_H
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#include "hw/pci/pci_device.h"
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#include "hw/scsi/scsi.h"
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#include "block/ufs.h"
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#define UFS_MAX_LUS 32
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#define UFS_BLOCK_SIZE 4096
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typedef struct UfsBusClass {
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BusClass parent_class;
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bool (*parent_check_address)(BusState *bus, DeviceState *dev, Error **errp);
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} UfsBusClass;
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typedef struct UfsBus {
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SCSIBus parent_bus;
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} UfsBus;
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#define TYPE_UFS_BUS "ufs-bus"
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DECLARE_OBJ_CHECKERS(UfsBus, UfsBusClass, UFS_BUS, TYPE_UFS_BUS)
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typedef enum UfsRequestState {
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UFS_REQUEST_IDLE = 0,
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UFS_REQUEST_READY = 1,
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UFS_REQUEST_RUNNING = 2,
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UFS_REQUEST_COMPLETE = 3,
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UFS_REQUEST_ERROR = 4,
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} UfsRequestState;
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typedef enum UfsReqResult {
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UFS_REQUEST_SUCCESS = 0,
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UFS_REQUEST_FAIL = 1,
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UFS_REQUEST_NO_COMPLETE = 2,
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} UfsReqResult;
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typedef struct UfsRequest {
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struct UfsHc *hc;
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UfsRequestState state;
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int slot;
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UtpTransferReqDesc utrd;
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UtpUpiuReq req_upiu;
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UtpUpiuRsp rsp_upiu;
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/* for scsi command */
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QEMUSGList *sg;
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} UfsRequest;
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typedef struct UfsLu {
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SCSIDevice qdev;
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uint8_t lun;
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UnitDescriptor unit_desc;
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} UfsLu;
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typedef struct UfsWLu {
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SCSIDevice qdev;
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uint8_t lun;
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} UfsWLu;
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typedef struct UfsParams {
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char *serial;
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uint8_t nutrs; /* Number of UTP Transfer Request Slots */
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uint8_t nutmrs; /* Number of UTP Task Management Request Slots */
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} UfsParams;
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typedef struct UfsHc {
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PCIDevice parent_obj;
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UfsBus bus;
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MemoryRegion iomem;
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UfsReg reg;
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UfsParams params;
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uint32_t reg_size;
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UfsRequest *req_list;
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UfsLu *lus[UFS_MAX_LUS];
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UfsWLu *report_wlu;
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UfsWLu *dev_wlu;
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UfsWLu *boot_wlu;
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UfsWLu *rpmb_wlu;
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DeviceDescriptor device_desc;
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GeometryDescriptor geometry_desc;
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Attributes attributes;
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Flags flags;
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qemu_irq irq;
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QEMUBH *doorbell_bh;
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QEMUBH *complete_bh;
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} UfsHc;
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#define TYPE_UFS "ufs"
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#define UFS(obj) OBJECT_CHECK(UfsHc, (obj), TYPE_UFS)
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#define TYPE_UFS_LU "ufs-lu"
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#define UFSLU(obj) OBJECT_CHECK(UfsLu, (obj), TYPE_UFS_LU)
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#define TYPE_UFS_WLU "ufs-wlu"
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#define UFSWLU(obj) OBJECT_CHECK(UfsWLu, (obj), TYPE_UFS_WLU)
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typedef enum UfsQueryFlagPerm {
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UFS_QUERY_FLAG_NONE = 0x0,
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UFS_QUERY_FLAG_READ = 0x1,
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UFS_QUERY_FLAG_SET = 0x2,
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UFS_QUERY_FLAG_CLEAR = 0x4,
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UFS_QUERY_FLAG_TOGGLE = 0x8,
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} UfsQueryFlagPerm;
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typedef enum UfsQueryAttrPerm {
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UFS_QUERY_ATTR_NONE = 0x0,
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UFS_QUERY_ATTR_READ = 0x1,
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UFS_QUERY_ATTR_WRITE = 0x2,
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} UfsQueryAttrPerm;
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static inline bool is_wlun(uint8_t lun)
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{
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return (lun == UFS_UPIU_REPORT_LUNS_WLUN ||
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lun == UFS_UPIU_UFS_DEVICE_WLUN || lun == UFS_UPIU_BOOT_WLUN ||
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lun == UFS_UPIU_RPMB_WLUN);
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}
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#endif /* HW_UFS_UFS_H */
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