Controller crashes with "P4 program SwitchML not found!"

[ertza]

This issue was solved by reloading kernel module using load driver with bf_kdrv_mod_load script.
Old description below:

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Hi, I compiled the program following the docs at https://switchml.readthedocs.io/en/latest/readmes/p4.html using bf-sde-9.6.0, and python 3.8. I have a Tofino switch and trying to run both switchd and controller on it. However, the controller program crashes and I also see error messages on switchd side when the controller crashes. Any pointers on what I am doing wrong and how to fix it?
Attaching the logs:

Controller:

(switchml_env) root@localhost:~/ewarraic/p4app-switchML/dev_root/controller# python switchml.py
Subscribe attempt #1
Subscribe response received 0
Binding with p4_name SwitchML
P4 program SwitchML not found!
Terminated

Switchd:

root@localhost:~/ewarraic/p4app-switchML/dev_root/p4# $SDE/run_switchd.sh -p SwitchML
Using SDE /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0
Using SDE_INSTALL /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install
Setting up DMA Memory Pool
Using TARGET_CONFIG_FILE /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/share/p4/targets/tofino/SwitchML.conf
Using PATH /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/bin:/root/bf-sde-9.4.0/install/bin:/root/.pyenv/shims:/root/.pyenv/bin:/root/.pyenv/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/lib/platform-config/current/onl/bin:/lib/platform-config/current/onl/sbin:/lib/platform-config/current/onl/lib/bin:/lib/platform-config/current/onl/lib/sbin
Using LD_LIBRARY_PATH /usr/local/lib:/root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/lib:
bf_sysfs_fname /sys/class/bf/bf0/device/dev_add
Install dir: /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install (0x55c86eac0a50)
bf_switchd: system services initialized
bf_switchd: loading conf_file /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/share/p4/targets/tofino/SwitchML.conf...
bf_switchd: processing device configuration...
Configuration for dev_id 0
  Family        : tofino
  pci_sysfs_str : /sys/devices/pci0000:00/0000:00:03.0/0000:05:00.0
  pci_domain    : 0
  pci_bus       : 5
  pci_fn        : 0
  pci_dev       : 0
  pci_int_mode  : 1
  sbus_master_fw: /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/
  pcie_fw       : /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/
  serdes_fw     : /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/
  sds_fw_path   : /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/share/tofino_sds_fw/avago/firmware
  microp_fw_path:
bf_switchd: processing P4 configuration...
P4 profile for dev_id 0
num P4 programs 1
  p4_name: SwitchML
  p4_pipeline_name: pipe
    libpd:
    libpdthrift:
    context: /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/share/tofinopd/SwitchML/pipe/context.json
    config: /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/share/tofinopd/SwitchML/pipe/tofino.bin
  Pipes in scope [0 1 2 3 ]
  diag:
  accton diag:
  Agent[0]: /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/lib/libpltfm_mgr.so
  non_default_port_ppgs: 0
  SAI default initialize: 1
bf_switchd: library /root/ewarraic/bf-sde/9.6/bf-sde-9.6.0/install/lib/libpltfm_mgr.so loaded
bf_switchd: agent[0] initialized
Health monitor started
Operational mode set to ASIC
Initialized the device types using platforms infra API
ASIC detected at PCI /sys/class/bf/bf0/device
ERROR getting ASIC pci device id fpr /sys/class/bf/bf0/device
Starting PD-API RPC server on port 9090
bf_switchd: drivers initialized
error opening /dev/bf0
ERROR: Device mmap failed for dev_id 0
Please load driver with bf_kdrv_mod_load script. Exiting..
ERROR: bf_switchd_device_add failed(2) for dev_id 0

bf_switchd: initialized 0 devices
Adding Thrift service for bf-platforms to server
bf_switchd: thrift initialized for agent : 0
bf_switchd: spawning cli server thread
bf_switchd: spawning driver shell
bf_switchd: server started - listening on port 9999
bfruntime gRPC server started on 0.0.0.0:50052

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        *      WARNING: Authorised Access Only     *
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bfshell> 2024-12-26 10:48:39.424191 BF_BFRT ERROR - bfRtInfoGet:159 BfRtInfo Object not found for dev : 0
2024-12-26 10:48:39.424591 BF_BFRT ERROR - BF_RT_SERVER:forwardingConfigBind:993 Failed to find BfRtInfo for program SwitchML Object not found
2024-12-26 10:48:39.424719 BF_BFRT ERROR - BF_RT_SERVER:SetForwardingPipelineConfig:3513 Failed to set Fwd_config for client_id 0