Optimized fibre channel and non-volatile memory express access

A method comprising:

• sending, by a processing device, a first command to a first submission queue of a plurality of submission queues, the first submission queue being reserved for use by a kernel space of a storage controller;
• and
• sending, by the processing device, a second command to a second submission queue of the plurality of submission queues without routing the second command through the kernel space, the second submission queue being reserved for direct access by an initiator device to a user space of the storage controller.

A non-transitory computer readable storage medium storing instructions, which when executed, cause a processing device to:

• send, by the processing device, a first command to a first submission queue of a plurality of submission queues, the first submission queue being reserved for use by a kernel space of a storage controller;
• and
• send, by the processing device, a second command to a second submission queue of the plurality of submission queues without routing the second command through the kernel space, the second submission queue being reserved for direct access by an initiator device to a user space of the storage controller.