mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 09:50:04 +00:00
![Christoph Hellwig](/assets/img/avatar_default.png)
There is no good reason to keep genhd.h separate from the main blkdev.h header that includes it. So fold the contents of genhd.h into blkdev.h and remove genhd.h entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20220124093913.742411-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef SCM_BLK_H
|
|
#define SCM_BLK_H
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/blk-mq.h>
|
|
#include <linux/list.h>
|
|
|
|
#include <asm/debug.h>
|
|
#include <asm/eadm.h>
|
|
|
|
#define SCM_NR_PARTS 8
|
|
#define SCM_QUEUE_DELAY 5
|
|
|
|
struct scm_blk_dev {
|
|
struct request_queue *rq;
|
|
struct gendisk *gendisk;
|
|
struct blk_mq_tag_set tag_set;
|
|
struct scm_device *scmdev;
|
|
spinlock_t lock;
|
|
atomic_t queued_reqs;
|
|
enum {SCM_OPER, SCM_WR_PROHIBIT} state;
|
|
struct list_head finished_requests;
|
|
};
|
|
|
|
struct scm_request {
|
|
struct scm_blk_dev *bdev;
|
|
struct aidaw *next_aidaw;
|
|
struct request **request;
|
|
struct aob *aob;
|
|
struct list_head list;
|
|
u8 retries;
|
|
blk_status_t error;
|
|
};
|
|
|
|
#define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data)
|
|
|
|
int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *);
|
|
void scm_blk_dev_cleanup(struct scm_blk_dev *);
|
|
void scm_blk_set_available(struct scm_blk_dev *);
|
|
void scm_blk_irq(struct scm_device *, void *, blk_status_t);
|
|
|
|
struct aidaw *scm_aidaw_fetch(struct scm_request *scmrq, unsigned int bytes);
|
|
|
|
int scm_drv_init(void);
|
|
void scm_drv_cleanup(void);
|
|
|
|
extern debug_info_t *scm_debug;
|
|
|
|
#define SCM_LOG(imp, txt) do { \
|
|
debug_text_event(scm_debug, imp, txt); \
|
|
} while (0)
|
|
|
|
static inline void SCM_LOG_HEX(int level, void *data, int length)
|
|
{
|
|
debug_event(scm_debug, level, data, length);
|
|
}
|
|
|
|
static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)
|
|
{
|
|
struct {
|
|
u64 address;
|
|
u8 oper_state;
|
|
u8 rank;
|
|
} __packed data = {
|
|
.address = scmdev->address,
|
|
.oper_state = scmdev->attrs.oper_state,
|
|
.rank = scmdev->attrs.rank,
|
|
};
|
|
|
|
SCM_LOG_HEX(level, &data, sizeof(data));
|
|
}
|
|
|
|
#endif /* SCM_BLK_H */
|