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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-03-25 03:26:49 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-07 21:19:01 +0400 |
| commit | 3bc6a26192d2548397a3e721d786cf8345ee54e1 (patch) | |
| tree | 03d14e2549a306c932bed0ee619bc67066631912 | |
| parent | be3cb3d84bb8dffecb7c5570355866075caa7e95 (diff) | |
| download | linux-3bc6a26192d2548397a3e721d786cf8345ee54e1.tar.xz | |
[SCSI] add scsi_build_sense_buffer helper function
This adds scsi_build_sense_buffer, a simple helper function to build
sense data in a buffer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/scsi/scsi_error.c | 28 | ||||
| -rw-r--r-- | include/scsi/scsi_eh.h | 4 |
2 files changed, 31 insertions, 1 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 1221d2ca0c64..221f31e36d26 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1993,3 +1993,31 @@ int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, } } EXPORT_SYMBOL(scsi_get_sense_info_fld); + +/** + * scsi_build_sense_buffer - build sense data in a buffer + * @desc: Sense format (non zero == descriptor format, + * 0 == fixed format) + * @buf: Where to build sense data + * @key: Sense key + * @asc: Additional sense code + * @ascq: Additional sense code qualifier + * + **/ +void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq) +{ + if (desc) { + buf[0] = 0x72; /* descriptor, current */ + buf[1] = key; + buf[2] = asc; + buf[3] = ascq; + buf[7] = 0; + } else { + buf[0] = 0x70; /* fixed, current */ + buf[2] = key; + buf[7] = 0xa; + buf[12] = asc; + buf[13] = ascq; + } +} +EXPORT_SYMBOL(scsi_build_sense_buffer); diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 37a7614f62f4..d3a133b4a072 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -57,7 +57,9 @@ extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len, extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, u64 * info_out); - + +extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq); + /* * Reset request from external source */ |