NAME¶

cxl_get_irqs_max - get the maximum number of AFU interrupts available to a context, if it was the only context running

SYNOPSIS¶

#include <libcxl.h>

int cxl_get_irqs_max(struct cxl_afu_h *afu, long *valp);

DESCRIPTION¶

cxl_get_irqs_max() copies to the long integer pointed to by valp the maximum number of AFU interrupts available to a context of afu, if it was the only context running.

This is the maximum number of interrupts that may be requested when calling cxl_afu_attach_full() or cxl_afu_attach_work() for afu. The default on probe is the maximum that hardware can support. It can be administratively restricted with cxl_set_irqs_max().

RETURN VALUE¶

On success, 0 is returned. On error, -1 is returned and errno is set appropriately.

ERRORS¶

EINVAL

Invalid argument value.

ENOMEM

Insufficient memory.

SEE ALSO¶

cxl(3), cxl_afu_attach(3), cxl_afu_attach_full(3), cxl_afu_attach_work(3), cxl_get_irqs_min(3), cxl_get_mode(3), cxl_get_modes_supported(3), cxl_get_prefault_mode(3), cxl_set_irqs_max(3), cxl_work_set_num_irqs(3)