DragonFlyBSD

Since upgrading to 5.8, my wifi occasionally drops out, and `doas service netif restart` does not bring it back. A reboot does though

I've tried it with each of:
#wpa_supplicant_program="/usr/sbin/wpa_supplicant"
#wpa_supplicant_program="/raven/sbin/wpa_supplicant"
wpa_supplicant_program="/usr/local/sbin/wpa_supplicant"

`doas service netif restart`:

```
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: iwm_start_fw: Unable to init nic
iwm0: iwm_start_fw: failed 16
iwm0: Failed to start INIT ucode: 16
iwm_run_init_ucode: failed 16
iwm_init_hw failed 16
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: iwm_start_fw: Unable to init nic
iwm0: iwm_start_fw: failed 16
iwm0: Failed to start INIT ucode: 16
iwm_run_init_ucode: failed 16
iwm_init_hw failed 16
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
iwm0: could not initiate scan
```

```
Mar 30 15:03:23 beloved kernel: iwm0: <Intel(R) Dual Band Wireless AC 7260> mem 0xf7900000-0xf7901fff at device 0.0 on pci4

Mar 30 15:03:23 beloved kernel: iwm0: hw rev 0x140, fw ver 17.352738.0, address ac:fd:ce:84:65:b6
```

Something like this also doesn't work, and produces the below output

```
doas service netif stop
doas kldunload if_iwm
doas kldunload iwm7260
doas kldunload iwm7260fw
doas kldload if_iwm
doas kldload iwm7260fw
doas service netif start
```

```
beloved kernel: iwm0: device timeout
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to remove station: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_mac_ctxt_send_cmd: Failed to send MAC context (action:2): 5
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to change mac context: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to update smart FIFO: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: Failed to remove station. Id=0
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to remove station id: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_update_quotas: Failed to send quota: 5
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to update PHY quota: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_mac_ctxt_send_cmd: Failed to send MAC context (action:2): 5
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to change mac context: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: Failed to send binding (action:3): 5
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to remove channel ctx: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_mac_ctxt_send_cmd: Failed to send MAC context (action:2): 5
beloved kernel: iwm0: iwm_bring_down_firmware: Failed to change mac context: 5
beloved kernel: iwm0: iwm_pcie_set_cmd_in_flight: Failed to wake NIC for hcmd
beloved kernel: iwm0: iwm_bring_down_firmware: failed to update power management
beloved kernel: iwm0: iwm_start_fw: Unable to init nic
beloved kernel: iwm0: iwm_start_fw: failed 16
beloved kernel: iwm0: Failed to start INIT ucode: 16
beloved kernel: iwm_run_init_ucode: failed 16
beloved kernel: iwm_init_hw failed 16
beloved kernel: iwm0: could not initiate scan
beloved last message repeated 7 times
beloved last message repeated 24 times
beloved last message repeated 12 times
beloved kernel: pf_test6: kif NULL, if_xname wlan0
beloved kernel: pf_test: kif NULL, if_xname wlan0
beloved kernel: iwm0: detached
beloved kernel: iwm0: <Intel(R) Dual Band Wireless AC 7260> mem 0xf7900000-0xf7901fff at device 0.0 on pci4
beloved kernel: iwm0: iwm_start_fw: Unable to init nic
beloved kernel: iwm0: iwm_start_fw: failed 16
beloved kernel: iwm0: Failed to start INIT ucode: 16
beloved kernel: iwm0: detached
beloved kernel: iwm0: <Intel(R) Dual Band Wireless AC 7260> mem 0xf7900000-0xf7901fff at device 0.0 on pci4
beloved kernel: iwm0: iwm_start_fw: Unable to init nic
beloved kernel: iwm0: iwm_start_fw: failed 16
beloved kernel: iwm0: Failed to start INIT ucode: 16
```