322cbb50de
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>
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef SCM_BLK_H
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#define SCM_BLK_H
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#include <linux/interrupt.h>
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#include <linux/spinlock.h>
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#include <linux/blkdev.h>
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#include <linux/blk-mq.h>
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#include <linux/list.h>
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#include <asm/debug.h>
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#include <asm/eadm.h>
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#define SCM_NR_PARTS 8
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#define SCM_QUEUE_DELAY 5
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struct scm_blk_dev {
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struct request_queue *rq;
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struct gendisk *gendisk;
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struct blk_mq_tag_set tag_set;
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struct scm_device *scmdev;
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spinlock_t lock;
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atomic_t queued_reqs;
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enum {SCM_OPER, SCM_WR_PROHIBIT} state;
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struct list_head finished_requests;
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};
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struct scm_request {
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struct scm_blk_dev *bdev;
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struct aidaw *next_aidaw;
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struct request **request;
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struct aob *aob;
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struct list_head list;
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u8 retries;
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blk_status_t error;
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};
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#define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data)
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int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *);
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void scm_blk_dev_cleanup(struct scm_blk_dev *);
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void scm_blk_set_available(struct scm_blk_dev *);
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void scm_blk_irq(struct scm_device *, void *, blk_status_t);
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struct aidaw *scm_aidaw_fetch(struct scm_request *scmrq, unsigned int bytes);
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int scm_drv_init(void);
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void scm_drv_cleanup(void);
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extern debug_info_t *scm_debug;
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#define SCM_LOG(imp, txt) do { \
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debug_text_event(scm_debug, imp, txt); \
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} while (0)
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static inline void SCM_LOG_HEX(int level, void *data, int length)
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{
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debug_event(scm_debug, level, data, length);
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}
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static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)
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{
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struct {
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u64 address;
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u8 oper_state;
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u8 rank;
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} __packed data = {
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.address = scmdev->address,
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.oper_state = scmdev->attrs.oper_state,
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.rank = scmdev->attrs.rank,
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};
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SCM_LOG_HEX(level, &data, sizeof(data));
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}
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#endif /* SCM_BLK_H */
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