From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/scsi/scsi_eh.h | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 include/scsi/scsi_eh.h (limited to 'include/scsi/scsi_eh.h') diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h new file mode 100644 index 000000000000..80557f879e3e --- /dev/null +++ b/include/scsi/scsi_eh.h @@ -0,0 +1,63 @@ +#ifndef _SCSI_SCSI_EH_H +#define _SCSI_SCSI_EH_H + +struct scsi_cmnd; +struct scsi_device; +struct scsi_request; +struct Scsi_Host; + +/* + * This is a slightly modified SCSI sense "descriptor" format header. + * The addition is to allow the 0x70 and 0x71 response codes. The idea + * is to place the salient data from either "fixed" or "descriptor" sense + * format into one structure to ease application processing. + * + * The original sense buffer should be kept around for those cases + * in which more information is required (e.g. the LBA of a MEDIUM ERROR). + */ +struct scsi_sense_hdr { /* See SPC-3 section 4.5 */ + u8 response_code; /* permit: 0x0, 0x70, 0x71, 0x72, 0x73 */ + u8 sense_key; + u8 asc; + u8 ascq; + u8 byte4; + u8 byte5; + u8 byte6; + u8 additional_length; /* always 0 for fixed sense format */ +}; + + +extern void scsi_add_timer(struct scsi_cmnd *, int, + void (*)(struct scsi_cmnd *)); +extern int scsi_delete_timer(struct scsi_cmnd *); +extern void scsi_report_bus_reset(struct Scsi_Host *, int); +extern void scsi_report_device_reset(struct Scsi_Host *, int, int); +extern int scsi_block_when_processing_errors(struct scsi_device *); +extern int scsi_normalize_sense(const u8 *sense_buffer, int sb_len, + struct scsi_sense_hdr *sshdr); +extern int scsi_request_normalize_sense(struct scsi_request *sreq, + struct scsi_sense_hdr *sshdr); +extern int scsi_command_normalize_sense(struct scsi_cmnd *cmd, + struct scsi_sense_hdr *sshdr); + +static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr) +{ + return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1)); +} + +extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len, + int desc_type); + +extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, + u64 * info_out); + +/* + * Reset request from external source + */ +#define SCSI_TRY_RESET_DEVICE 1 +#define SCSI_TRY_RESET_BUS 2 +#define SCSI_TRY_RESET_HOST 3 + +extern int scsi_reset_provider(struct scsi_device *, int); + +#endif /* _SCSI_SCSI_EH_H */ -- cgit v1.2.3-59-g8ed1b