366b77ae43
Commit 2a842acab1 ("block: introduce new block status code type")
added blk_status_t usage to the eadm subchannel driver. However
blk_status_t is unknown when included via <linux/blkdev.h> for CONFIG_BLOCK=n.
Only include <linux/blk_types.h> since this is the only dependency eadm has.
This fixes build failures like below:
In file included from drivers/s390/cio/eadm_sch.c:24:0:
./arch/s390/include/asm/eadm.h:111:4: error: unknown type name 'blk_status_t'; did you mean 'si_status'?
blk_status_t error);
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
121 lines
2 KiB
C
121 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_S390_EADM_H
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#define _ASM_S390_EADM_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/blk_types.h>
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struct arqb {
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u64 data;
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u16 fmt:4;
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u16:12;
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u16 cmd_code;
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u16:16;
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u16 msb_count;
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u32 reserved[12];
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} __packed;
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#define ARQB_CMD_MOVE 1
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struct arsb {
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u16 fmt:4;
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u32:28;
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u8 ef;
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u8:8;
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u8 ecbi;
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u8:8;
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u8 fvf;
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u16:16;
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u8 eqc;
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u32:32;
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u64 fail_msb;
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u64 fail_aidaw;
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u64 fail_ms;
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u64 fail_scm;
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u32 reserved[4];
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} __packed;
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#define EQC_WR_PROHIBIT 22
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struct msb {
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u8 fmt:4;
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u8 oc:4;
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u8 flags;
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u16:12;
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u16 bs:4;
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u32 blk_count;
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u64 data_addr;
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u64 scm_addr;
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u64:64;
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} __packed;
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struct aidaw {
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u8 flags;
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u32 :24;
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u32 :32;
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u64 data_addr;
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} __packed;
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#define MSB_OC_CLEAR 0
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#define MSB_OC_READ 1
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#define MSB_OC_WRITE 2
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#define MSB_OC_RELEASE 3
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#define MSB_FLAG_BNM 0x80
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#define MSB_FLAG_IDA 0x40
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#define MSB_BS_4K 0
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#define MSB_BS_1M 1
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#define AOB_NR_MSB 124
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struct aob {
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struct arqb request;
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struct arsb response;
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struct msb msb[AOB_NR_MSB];
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} __packed __aligned(PAGE_SIZE);
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struct aob_rq_header {
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struct scm_device *scmdev;
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char data[0];
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};
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struct scm_device {
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u64 address;
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u64 size;
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unsigned int nr_max_block;
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struct device dev;
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struct {
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unsigned int persistence:4;
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unsigned int oper_state:4;
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unsigned int data_state:4;
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unsigned int rank:4;
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unsigned int release:1;
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unsigned int res_id:8;
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} __packed attrs;
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};
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#define OP_STATE_GOOD 1
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#define OP_STATE_TEMP_ERR 2
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#define OP_STATE_PERM_ERR 3
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enum scm_event {SCM_CHANGE, SCM_AVAIL};
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struct scm_driver {
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struct device_driver drv;
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int (*probe) (struct scm_device *scmdev);
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int (*remove) (struct scm_device *scmdev);
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void (*notify) (struct scm_device *scmdev, enum scm_event event);
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void (*handler) (struct scm_device *scmdev, void *data,
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blk_status_t error);
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};
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int scm_driver_register(struct scm_driver *scmdrv);
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void scm_driver_unregister(struct scm_driver *scmdrv);
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int eadm_start_aob(struct aob *aob);
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void scm_irq_handler(struct aob *aob, blk_status_t error);
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#endif /* _ASM_S390_EADM_H */
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