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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fe16d4f202
This reverts commit a1524f226a.
As implemented, ACS-4 sense reporting for ATA devices bypasses error
diagnosis and handling in libata degrading EH behavior significantly.
Revert the related changes for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org #v4.1+
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
#ifndef _SCSI_SCSI_EH_H
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#define _SCSI_SCSI_EH_H
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#include <linux/scatterlist.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_common.h>
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struct scsi_device;
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struct Scsi_Host;
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extern void scsi_eh_finish_cmd(struct scsi_cmnd *scmd,
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struct list_head *done_q);
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extern void scsi_eh_flush_done_q(struct list_head *done_q);
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extern void scsi_report_bus_reset(struct Scsi_Host *, int);
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extern void scsi_report_device_reset(struct Scsi_Host *, int, int);
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extern int scsi_block_when_processing_errors(struct scsi_device *);
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extern bool scsi_command_normalize_sense(const struct scsi_cmnd *cmd,
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struct scsi_sense_hdr *sshdr);
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static inline bool scsi_sense_is_deferred(const struct scsi_sense_hdr *sshdr)
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{
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return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
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}
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extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
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u64 * info_out);
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extern int scsi_ioctl_reset(struct scsi_device *, int __user *);
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struct scsi_eh_save {
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/* saved state */
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int result;
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enum dma_data_direction data_direction;
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unsigned underflow;
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unsigned char cmd_len;
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unsigned char prot_op;
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unsigned char *cmnd;
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struct scsi_data_buffer sdb;
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struct request *next_rq;
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/* new command support */
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unsigned char eh_cmnd[BLK_MAX_CDB];
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struct scatterlist sense_sgl;
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};
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extern void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd,
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struct scsi_eh_save *ses, unsigned char *cmnd,
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int cmnd_size, unsigned sense_bytes);
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extern void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd,
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struct scsi_eh_save *ses);
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#endif /* _SCSI_SCSI_EH_H */
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