linux/drivers/mmc/core/queue.h

/* 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 { … };

enum mmc_issue_type { … };

static inline struct mmc_queue_req *req_to_mmc_queue_req(struct request *rq)
{ … }

struct mmc_queue_req;

static inline struct request *mmc_queue_req_to_req(struct mmc_queue_req *mqr)
{ … }

struct mmc_blk_data;
struct mmc_blk_ioc_data;

struct mmc_blk_request { … };

/**
 * 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 { … };

struct mmc_queue_req { … };

struct mmc_queue { … };

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)
{ … }

static inline int mmc_cqe_qcnt(struct mmc_queue *mq)
{ … }

#endif