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 {
	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 task_struct;
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;
	int			retune_retry_done;
};

/**
 * 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;
	struct mmc_async_req	areq;
	enum mmc_drv_op		drv_op;