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| author | Suganath Prabu S <suganath-prabu.subramani@broadcom.com> | 2021-02-04 06:37:23 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-02-09 06:02:07 +0300 |
| commit | 688c1a0a130ba33ebfbb45bfe2bbe151e48d385f (patch) | |
| tree | 53aa9f2f638ab6e93263351bd959d9750597f024 /drivers/scsi/mpt3sas/mpt3sas_ctl.h | |
| parent | 664f0dce20580837c7fa136a03b3a9fc43034104 (diff) | |
| download | linux-688c1a0a130ba33ebfbb45bfe2bbe151e48d385f.tar.xz | |
scsi: mpt3sas: Additional diagnostic buffer query interface
When a host trace buffer is released, applications never know for what
reason the buffer is released. Add a new IOCTL MPT3ADDNLDIAGQUERY to
provide the trigger information due to which the diag buffer is released.
Link: https://lore.kernel.org/r/20210204033724.1345-2-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_ctl.h')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_ctl.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.h b/drivers/scsi/mpt3sas/mpt3sas_ctl.h index 0f7aa4ddade0..d2ccdafb8df2 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.h +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.h @@ -94,6 +94,8 @@ struct mpt3_diag_query) #define MPT3DIAGREADBUFFER _IOWR(MPT3_MAGIC_NUMBER, 30, \ struct mpt3_diag_read_buffer) +#define MPT3ADDNLDIAGQUERY _IOWR(MPT3_MAGIC_NUMBER, 32, \ + struct mpt3_addnl_diag_query) /* Trace Buffer default UniqueId */ #define MPT2DIAGBUFFUNIQUEID (0x07075900) @@ -430,4 +432,24 @@ struct mpt3_diag_read_buffer { uint32_t diagnostic_data[1]; }; +/** + * struct mpt3_addnl_diag_query - diagnostic buffer release reason + * @hdr - generic header + * @unique_id - unique id associated with this buffer. + * @buffer_rel_condition - Release condition ioctl/sysfs/reset + * @reserved1 + * @trigger_type - Master/Event/scsi/MPI + * @trigger_info_dwords - Data Correspondig to trigger type + * @reserved2 + */ +struct mpt3_addnl_diag_query { + struct mpt3_ioctl_header hdr; + uint32_t unique_id; + uint16_t buffer_rel_condition; + uint16_t reserved1; + uint32_t trigger_type; + uint32_t trigger_info_dwords[2]; + uint32_t reserved2[2]; +}; + #endif /* MPT3SAS_CTL_H_INCLUDED */ |