NAME

cxl_errinfo_size - returns the size of afu_err_buff in bytes

SYNOPSIS

#include<libcxl.h>

int cxl_errinfo_size(struct cxl_afu_h *afu, size_t *valp);

DESCRIPTION

cxl_errinfo_size stores the size (in bytes) of the AFU Error Buffer associated with the provided afu context handle at valp.

Applications can also use this function to determine if the afu_err_buff exists for the attached afu.

RETURN VALUE

On success, 0 is returned and size of the buffer is stored at valp

On error, -1 is returned, errno is set appropriately and the contents at valp are not touched

ERRORS

ENOENT

The AFU does not export afu_err_buff region.

EACCES

Permission to read the contents of AFU Error buffer is denied.

ENOMEM

Insufficient memory.

ENOSPC

No AFU context available.

EPROTO

Unsupported kernel CXL API version.

FILES

/dev/cxl/afu<i>.<j>d

AFU device in dedicated process mode.

/dev/cxl/afu<i>.<j>m

AFU device in AFU directed mode, master context.

/dev/cxl/afu<i>.<j>s

AFU device in AFU directed mode, slave context.

/dev/cxl/afu<i>.<j>/afu_err_buff

AFU Error Buffer contents. The contents of this file are application specific and depends on the AFU being used.

SEE ALSO

cxl(3), cxl_errinfo_read(3)