libnvmf_kernel_option_supported-libnvme32
Check if the kernel supports an option
Usage
int libnvmf_kernel_option_supported (struct libnvme_global_ctx *ctx , const char *name , bool *supported );
Arguments
- ctx
-
libnvme global context
- name
-
Option name as the kernel lists it in /dev/nvme-fabrics, e.g. "discovery", "tls", "ctrl_loss_tmo"
- supported
-
Set to true if the kernel supports name
Overview
The options are read from /dev/nvme-fabrics once per ctx. The read blocks while another process connects a controller.
Return
0 on success, -EINVAL if an argument is NULL, -EOPNOTSUPP if the kernel does not list its options (Linux < 5.17), or another negative error code.