Hey > > I'm working on a setup using a RPi CM4 based board and a Sierra > > Wireless EM9191 module, running OpenWRT 21.02 and backported mhi+wwan > > drivers (from latest 5.15 rc). The kernel also has the > > mhi_pci_dev_info entry written by Thomas, as per > > https://forum.sierrawireless.com/t/sierra-wireless-airprime-em919x-pcie-support/24927 > > > > The EM9191 is now running 02.08.01.00 (latest firmware from Sierra), > > upgraded in several steps back from the original 01.04.01.02 the > > module came with. The firmware upgrades were done with > > qmi-firmware-update and the module in USB mode in a desktop PC. > > > > Most of the system boots end up with the mhi driver reporting that the > > module firmware crashed in different ways: > > > > [ 7.060730] mhi-pci-generic 0000:01:00.0: MHI PCI device found: sierra-em919x > > [ 7.067906] mhi-pci-generic 0000:01:00.0: BAR 0: assigned [mem > > 0x600000000-0x600000fff 64bit] > > [ 7.076455] mhi-pci-generic 0000:01:00.0: enabling device (0000 -> 0002) > > [ 7.083277] mhi-pci-generic 0000:01:00.0: using shared MSI > > [ 7.089508] mhi mhi0: Requested to power ON > > [ 7.094080] mhi mhi0: Attempting power on with EE: PASS THROUGH, > > state: SYS ERROR > > [ 7.180371] mhi mhi0: local ee: INVALID_EE state: RESET device ee: > > PASS THROUGH state: SYS ERROR > > [ 7.187146] mhi mhi0: Power on setup success > > [ 7.187219] mhi mhi0: Handling state transition: PBL > > [ 7.189165] mhi mhi0: System error detected > > [ 7.189178] mhi mhi0: Device MHI is not in valid state > > [ 7.189189] mhi-pci-generic 0000:01:00.0: firmware crashed (7) > > [ 7.213682] mhi mhi0: Handling state transition: SYS ERROR > > [ 7.219183] mhi mhi0: Transitioning from PM state: Linkdown or > > Error Fatal Detect to: SYS ERROR Process > > [ 7.228590] mhi-pci-generic 0000:01:00.0: firmware crashed (6) > > [ 7.234429] mhi mhi0: Failed to transition from PM state: Linkdown > > or Error Fatal Detect to: SYS ERROR Process > > [ 7.244433] mhi mhi0: Exiting with PM state: Linkdown or Error > > Fatal Detect, MHI state: RESET > > [ 7.252963] mhi mhi0: Handling state transition: DISABLE > > [ 7.258278] mhi mhi0: Processing disable transition with PM state: > > Linkdown or Error Fatal Detect > > [ 7.267155] mhi mhi0: Waiting for all pending event ring processing > > to complete > > [ 7.274480] mhi mhi0: Waiting for all pending threads to complete > > [ 7.280576] mhi mhi0: Reset all active channels and remove MHI devices > > [ 7.287110] mhi mhi0: Resetting EV CTXT and CMD CTXT > > [ 7.292077] mhi mhi0: Exiting with PM state: DISABLE, MHI state: RESET > > [ 7.298683] mhi-pci-generic 0000:01:00.0: failed to power up MHI controller > > [ 7.306184] mhi-pci-generic: probe of 0000:01:00.0 failed with error -110 > > > > Some of the boots successfully finish and I can talk to both the QMI > > and MBIM ports exposed by the WWAN subsystem, but the success rate is > > extremely low. > > > > Can you share the success log also? > The successful boots seem to happen always on cold boots, and the success rate is low (30% or so) on some manual testing here. I haven't seen one single successful boot on system restarts, they all fail like in the previous email. When the boot is successful it looks like this: [ 0.099938] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges: [ 0.099961] brcm-pcie fd500000.pcie: No bus range found for /scb/pcie@7d500000, using [bus 00-ff] [ 0.099999] brcm-pcie fd500000.pcie: MEM 0x0600000000..0x0603ffffff -> 0x00f8000000 [ 0.100032] brcm-pcie fd500000.pcie: IB MEM 0x0000000000..0x00bfffffff -> 0x0000000000 [ 0.149955] brcm-pcie fd500000.pcie: link up, 5 GT/s x1 (SSC) [ 0.150114] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00 [ 0.150133] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.150152] pci_bus 0000:00: root bus resource [mem 0x600000000-0x603ffffff] (bus address [0xf8000000-0xfbffffff]) [ 0.150193] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400 [ 0.150282] pci 0000:00:00.0: PME# supported from D0 D3hot [ 0.153464] pci 0000:00:00.0: bridge configuration invalid ([bus ff-ff]), reconfiguring [ 0.153589] pci 0000:01:00.0: [17cb:0306] type 00 class 0xff0000 [ 0.153650] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x00000fff 64bit] [ 0.153680] pci 0000:01:00.0: reg 0x18: [mem 0x00000000-0x00000fff 64bit] [ 0.153838] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold [ 0.153889] pci 0000:01:00.0: 4.000 Gb/s available PCIe bandwidth, limited by 5 GT/s x1 link at 0000:00:00.0 (capable of 31.506 Gb/s with 16 GT/s x2 link) [ 0.156944] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 [ 0.156983] pci 0000:00:00.0: BAR 8: assigned [mem 0x600000000-0x6000fffff] [ 0.157004] pci 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x600000fff 64bit] [ 0.157035] pci 0000:01:00.0: BAR 2: assigned [mem 0x600001000-0x600001fff 64bit] [ 0.157064] pci 0000:00:00.0: PCI bridge to [bus 01] [ 0.157079] pci 0000:00:00.0: bridge window [mem 0x600000000-0x6000fffff] [ 0.157222] pcieport 0000:00:00.0: enabling device (0000 -> 0002) [ 0.157340] pcieport 0000:00:00.0: PME: Signaling with IRQ 38 [ 0.157567] pcieport 0000:00:00.0: AER: enabled with IRQ 38 [ 7.052080] mhi-pci-generic 0000:01:00.0: MHI PCI device found: sierra-em919x [ 7.059284] mhi-pci-generic 0000:01:00.0: BAR 0: assigned [mem 0x600000000-0x600000fff 64bit] [ 7.067839] mhi-pci-generic 0000:01:00.0: enabling device (0000 -> 0002) [ 7.074676] mhi-pci-generic 0000:01:00.0: using shared MSI [ 7.080858] mhi mhi0: Requested to power ON [ 7.085357] mhi mhi0: Attempting power on with EE: PASS THROUGH, state: SYS ERROR [ 7.431361] mhi mhi0: local ee: INVALID_EE state: RESET device ee: PASS THROUGH state: RESET [ 7.432247] mhi mhi0: Power on setup success [ 7.440015] mhi mhi0: Handling state transition: PBL [ 8.387907] mhi mhi0: Device in READY State [ 8.392128] mhi mhi0: Initializing MHI registers [ 8.396815] mhi mhi0: Wait for device to enter SBL or Mission mode [ 14.148059] mhi mhi0: State change event to state: M0 [ 14.148076] mhi mhi0: local ee: PASS THROUGH state: READY device ee: MISSION MODE state: M0 [ 14.161518] mhi mhi0: Received EE event: MISSION MODE [ 14.161522] mhi mhi0: local ee: PASS THROUGH state: M0 device ee: MISSION MODE state: M0 [ 14.174684] mhi mhi0: Handling state transition: MISSION MODE [ 14.180447] mhi mhi0: Processing Mission Mode transition [ 14.186199] mhi_net mhi0_IP_HW0: 100: Updating channel state to: START [ 14.361842] mhi mhi0: local ee: MISSION MODE state: M0 device ee: MISSION MODE state: M0 [ 14.363918] mhi_net mhi0_IP_HW0: 100: Channel state change to START successful [ 14.377324] mhi_net mhi0_IP_HW0: 101: Updating channel state to: START [ 14.490249] mhi_net mhi0_IP_HW0: 101: Channel state change to START successful [ 14.490255] mhi mhi0: local ee: MISSION MODE state: M0 device ee: MISSION MODE state: M0 [ 16.835372] mhi mhi0: Allowing M3 transition [ 16.839695] mhi mhi0: Waiting for M3 completion [ 16.966594] mhi mhi0: State change event to state: M3 [ 16.966615] mhi mhi0: local ee: MISSION MODE state: M0 device ee: MISSION MODE state: M3 [ 20.460243] mhi_wwan_ctrl mhi0_DUN: 32: Updating channel state to: START [ 20.484117] mhi mhi0: Entered with PM state: M3, MHI state: M3 [ 20.499999] mhi mhi0: State change event to state: M0 [ 20.500021] mhi mhi0: local ee: MISSION MODE state: M3 device ee: MISSION MODE state: M0 [ 20.517791] mhi mhi0: local ee: MISSION MODE state: M0 device ee: MISSION MODE state: M0 .... When in this state, ModemManager/qmicli/mbimcli can pick up the device right away, without any issues observed there. Haven't tested data connection yet. root@OpenWrt:~# mmcli -m 0 ----------------------------- General | path: /org/freedesktop/ModemManager1/Modem/0 | device id: 58a66d754412bf0a8ec2a840f111856d85a4b053 ----------------------------- Hardware | manufacturer: Sierra Wireless, Incorporated | model: EM9191 | firmware revision: SWIX55C_02.08.01.00 58f60e jenkins 2021/03/12 18:05:48 | carrier config: default | h/w revision: 0.2 | supported: gsm-umts, lte, 5gnr | current: gsm-umts, lte, 5gnr | equipment id: XXXXXXXXXXXXXX ----------------------------- System | device: /sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0 | drivers: mhi-pci-generic, mhi_net | plugin: generic | primary port: wwan0qmi0 | ports: mhi_hwip0 (net), wwan0at0 (at), wwan0mbim0 (mbim), | wwan0qcdm0 (qcdm), wwan0qmi0 (qmi) ----------------------------- Status | state: failed | failed reason: sim-missing | power state: on | signal quality: 0% (cached) ----------------------------- Modes | supported: allowed: 3g; preferred: none | allowed: 4g; preferred: none | allowed: 3g, 4g; preferred: 4g | allowed: 3g, 4g; preferred: 3g | allowed: 5g; preferred: none | allowed: 3g, 5g; preferred: 5g | allowed: 3g, 5g; preferred: 3g | allowed: 4g, 5g; preferred: 5g | allowed: 4g, 5g; preferred: 4g | allowed: 3g, 4g, 5g; preferred: 5g | allowed: 3g, 4g, 5g; preferred: 4g | allowed: 3g, 4g, 5g; preferred: 3g | current: allowed: any; preferred: none ----------------------------- Bands | supported: utran-1, utran-3, utran-4, utran-6, utran-5, utran-8, | utran-9, utran-2, eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, | eutran-7, eutran-8, eutran-12, eutran-13, eutran-14, eutran-17, | eutran-18, eutran-19, eutran-20, eutran-25, eutran-26, eutran-28, | eutran-29, eutran-30, eutran-32, eutran-34, eutran-38, eutran-39, | eutran-40, eutran-41, eutran-42, eutran-46, eutran-48, eutran-66, | eutran-71, utran-19 ----------------------------- IP | supported: ipv4, ipv6, ipv4v6 ----------------------------- SIM | sim slot paths: slot 1: none (active) root@OpenWrt:~# qmicli -d /dev/wwan0qmi0 -p --dms-get-capabilities [/dev/wwan0qmi0] Device capabilities retrieved: Max TX channel rate: '50000000' Max RX channel rate: '100000000' Data Service: 'non-simultaneous-cs-ps' SIM: 'supported' Networks: 'umts, lte, 5gnr' root@OpenWrt:~# mbimcli -d /dev/wwan0mbim0 -p --query-device-caps [/dev/wwan0mbim0] Device capabilities retrieved: Device type: 'embedded' Cellular class: 'gsm' Voice class: 'no-voice' SIM class: 'removable' Data class: 'umts, hsdpa, hsupa, lte, custom' SMS caps: 'pdu-receive, pdu-send' Ctrl caps: 'reg-manual' Max sessions: '15' Custom data class: '5G/TDS' Device ID: 'XXXXXXXXXXX' Firmware info: '02.08.01.00_GENERI_020.007_001' Hardware info: 'EM9191' -- Aleksander https://aleksander.es
