/* SPDX-License-Identifier: GPL-2.0 */#ifndef MMC_QUEUE_H#define MMC_QUEUE_H #include <linux/types.h>#include <linux/blkdev.h>#include <linux/blk-mq.h>#include <linux/mmc/core.h>#include <linux/mmc/host.h> enum mmc_issued {	MMC_REQ_STARTED,	MMC_REQ_BUSY,	MMC_REQ_FAILED_TO_START,	MMC_REQ_FINISHED,}; enum mmc_issue_type {	MMC_ISSUE_SYNC,	MMC_ISSUE_DCMD,	MMC_ISSUE_ASYNC,	MMC_ISSUE_MAX,}; static inline struct mmc_queue_req *req_to_mmc_queue_req(struct request *rq){	return blk_mq_rq_to_pdu(rq);} struct mmc_queue_req; static inline struct request *mmc_queue_req_to_req(struct mmc_queue_req *mqr){	return blk_mq_rq_from_pdu(mqr);} struct mmc_blk_data;struct mmc_blk_ioc_data; struct mmc_blk_request {	struct mmc_request	mrq;	struct mmc_command	sbc;	struct mmc_command	cmd;	struct mmc_command	stop;	struct mmc_data		data;}; /** * enum mmc_drv_op - enumerates the operations in the mmc_queue_req * @MMC_DRV_OP_IOCTL: ioctl operation * @MMC_DRV_OP_IOCTL_RPMB: RPMB-oriented ioctl operation * @MMC_DRV_OP_BOOT_WP: write protect boot partitions * @MMC_DRV_OP_GET_CARD_STATUS: get card status * @MMC_DRV_OP_GET_EXT_CSD: get the EXT CSD from an eMMC card */enum mmc_drv_op {	MMC_DRV_OP_IOCTL,	MMC_DRV_OP_IOCTL_RPMB,	MMC_DRV_OP_BOOT_WP,	MMC_DRV_OP_GET_CARD_STATUS,	MMC_DRV_OP_GET_EXT_CSD,}; struct mmc_queue_req {	struct mmc_blk_request	brq;	struct scatterlist	*sg;	enum mmc_drv_op		drv_op;	int			drv_op_result;	void			*drv_op_data;	unsigned int		ioc_count;	int			retries;}; struct mmc_queue {	struct mmc_card		*card;	struct mmc_ctx		ctx;	struct blk_mq_tag_set	tag_set;	struct mmc_blk_data	*blkdata;	struct request_queue	*queue;	spinlock_t		lock;	int			in_flight[MMC_ISSUE_MAX];	unsigned int		cqe_busy;#define MMC_CQE_DCMD_BUSY	BIT(0)	bool			busy;	bool			recovery_needed;	bool			in_recovery;	bool			rw_wait;	bool			waiting;	struct work_struct	recovery_work;	wait_queue_head_t	wait;	struct request		*recovery_req;	struct request		*complete_req;	struct mutex		complete_lock;	struct work_struct	complete_work;}; struct gendisk *mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,		unsigned int features);extern void mmc_cleanup_queue(struct mmc_queue *);extern void mmc_queue_suspend(struct mmc_queue *);extern void mmc_queue_resume(struct mmc_queue *);extern unsigned int mmc_queue_map_sg(struct mmc_queue *,				     struct mmc_queue_req *); void mmc_cqe_check_busy(struct mmc_queue *mq);void mmc_cqe_recovery_notifier(struct mmc_request *mrq); enum mmc_issue_type mmc_issue_type(struct mmc_queue *mq, struct request *req); static inline int mmc_tot_in_flight(struct mmc_queue *mq){	return mq->in_flight[MMC_ISSUE_SYNC] +	       mq->in_flight[MMC_ISSUE_DCMD] +	       mq->in_flight[MMC_ISSUE_ASYNC];} static inline int mmc_cqe_qcnt(struct mmc_queue *mq){	return mq->in_flight[MMC_ISSUE_DCMD] +	       mq->in_flight[MMC_ISSUE_ASYNC];} #endif