man/man9s/ddi_fm_error.9s

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 DDI_FM_ERROR 9S "May 13, 2007"
 NAME
ddi_fm_error - I/O error status structure
 SYNOPSIS
#include <sys/ddifm.h>


 INTERFACE LEVEL
illumos DDI specific (illumos DDI)
 DESCRIPTION
A ddi_fm_error_t structure contains common data necessary for I/O
error handling. A pointer to a ddi_fm_error_t structure is passed to
error handling callbacks where it can then be used in a call to
pci_ereport_post(). The same structure is also returned to callers of
ddi_fm_acc_err_get() and ddi_fm_dma_err_get().
 STRUCTURE MEMBERS
int fme_version;
uint64_t fme_ena;
int fme_status;
int fme_flag;
ddi_acc_handle_t fme_acc_handle;
ddi_dma_handle_t fme_dma_handle;


The fme_version is the current version of ddi_fm_error_t. Valid
values for the version are: DDI_FME_VER0 and DDI_FME_VER1.

The fme_ena is the FMA event protocol Format 1 Error Numeric
Association (ENA) for this error condition.

The fme_flag field is set to DDI_FM_ERR_EXPECTED if the error is
the result of a DDI_ACC_CAUTIOUS protected operation. In this case,
fme_acc_handle is valid and the driver should check for and report only
errors not associated with the DDI_ACC_CAUTIOUS protected access
operation. This field can also be set to DDI_FM_ERR_POKE or
DDI_FM_ERR_PEEK if the error is the result of a ddi_peek(9F) or
ddi_poke(9F) operation. The driver should handle these in a similar way
to DDI_FM_ERR_EXPECTED. Otherwise, ddi_flag is set to
DDI_FM_ERR_UNEXPECTED and the driver must perform the full range of error
handling tasks.

The fme_status indicates current status of an error handler callback or
resource handle:
DDI_FM_OK

No errors were detected.


DDI_FM_FATAL

An error which is considered fatal to the operational state of the system was
detected.


DDI_FM_NONFATAL

An error which is not considered fatal to the operational state of the system
was detected.


DDI_FM_UNKNOWN

An error was detected, but the driver was unable to determine the impact of the
error on the operational state of the system.


The fme_acc_handle is the valid access handle associated with the error
that can be returned from pci_ereport_post()

The fme_dma_handle is the valid DMA handle associated with the
error that can be returned from pci_ereport_post()
 ATTRIBUTES
See attributes(7) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Committed


 SEE ALSO
 attributes (7),  ddi_fm_acc_err_get (9F),  ddi_fm_dma_err_get (9F),  ddi_fm_handler_register (9F),  ddi_peek (9F),  ddi_poke (9F),  pci_ereport_post (9F)
Writing Device Drivers