Cannot create doca transport SDK error

Infrastructure & Networking DOCA Storage
1

I installed doca SDK 3.2.1 on BF3 and try to run nvme_emulation application following DOCA NVMe Emulation Application Guide - NVIDIA Docs .
nvmf_create_transport -t doca -u 8192 -i 131072 -c 819
fails with corresponding messages
[2026-01-27 09:20:48:903971][3229286432][DOCA][ERR][linux_devx_adapter.cpp:181] devx adapter 0xabab6e948720: FW failed to execute general PRM command=0xb2d, status=BAD_RES_STATE_ERR (0x9) with syndrome=0x83d555

[2026-01-27 09:20:48:904086][3229286432][DOCA][ERR][doca_devemu_pci_dev.cpp:2741] exception occurred:

[2026-01-27 09:20:48:904119][3229286432][DOCA][ERR][doca_devemu_pci_dev.cpp:2741] DOCA exception [DOCA_ERROR_DRIVER] with message Failed to send generic message

[2026-01-27 09:20:48:904140][3229286432][DOCA][ERR][doca_transport.c:473][nvmf_doca_pci_type_create_and_start] Failed to modify bar stateful region: DOCA_ERROR_DRIVER

[2026-01-27 09:20:48:904314][3229286432][DOCA][ERR][doca_transport.c:516][nvmf_doca_create_emulation_manager] Failed to initialize PCI type: DOCA_ERROR_DRIVER

[2026-01-27 09:20:48:904324][3229286432][DOCA][ERR][doca_devemu_pci_type.cpp:436] doca_devemu_pci_type_stop failed: type name ‘NVME Type’: type already stopped

[2026-01-27 09:20:48:904330][3229286432][DOCA][ERR][nvme_pci_common.c:325][cleanup_pci_resources] Failed to stop DOCA Emulated PCI Type: Bad State

[2026-01-27 09:20:48:904350][3229286432][DOCA][ERR][doca_transport.c:636][nvmf_doca_create] Emulation manager initialization failed: DOCA_ERROR_DRIVER

[2026-01-27 09:20:48:904357][3229286432][DOCA][ERR][doca_transport.c:645][nvmf_doca_create] No emulation managers available

[2026-01-27 09:20:48.907169] transport.c: 239:spdk_nvmf_transport_create: *ERROR*: Unable to create new transport of type doca

[2026-01-27 09:20:48.907245] nvmf_rpc.c:1996:rpc_nvmf_create_transport: *ERROR*: Transport type ‘doca’ create failed

2

Update: this particular problem was triggered by this code:

*registers = (struct nvmf_doca_nvme_registers){
.cap.bits =
{
.mqes = NVMF_DOCA_DEFAULT_MAX_QUEUE_DEPTH - 1,
.cqr = 0x1,
.to = 0xf0,
.css = 0x1,
},
.vs.bits =
{
.mjr = 0x1,
.mnr = 0x3,
},
};
ret = doca_devemu_pci_type_modify_bar_stateful_region_default_values(doca_emulation_manager->pci_type,
0,
0,
data,
sizeof(data));

it was resolved by setting non-zero :
NVME_EMULATION_MAX_QUEUE_DEPTH through config.