<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""> <div> <blockquote type="cite" class=""> <div class="">On Apr 28, 2020, at 3:54 AM, Paul Gildea <<a href="mailto:gildeap@tcd.ie" class="">gildeap@tcd.ie</a>> wrote:</div> <div class=""> <div dir="ltr" class="">Hi, I see an issue when resetting modems, both with Telit and Sierra. It happens quite rarely but renders the modem unusable. I tell the modem to go offline and then to reset, most of the time this works, it's a standard thing. Occasionally it will say that it is a success but never actually reload, no matter how many times you issue the commands after this the modem won't reset, and it also can not come back online (invalid transition I assume). Here is the verbose output if that helps in any way, any test you thinkI can run while I have a modem in this state? (Telit LNM960A18)</div> </div> </blockquote> <div> </div> <div> <div class="">I’ve run into this before with MDM 9207 modems from Telit and Quectel, but only when the AT&T MBN (carrier profile) is activated. Other carriers profiles did not exhibit this behavior.</div> <div class=""> <div class=""> </div> <div class="">I worked around the problem by skipping the “offline" mode step and just sending a dms_set_operating_mode message with QMI_DMS_OPERATING_MODE_RESET. See an implementation here:</div> <div class=""> </div> <div class=""><a href="https://github.com/temperednetworks/ModemManager/blob/752027d19f77e65b1d4568de49cf2599c49d4e9e/plugins/quectel/mm-broadband-modem-qmi-quectel.c#L198" class="">https://github.com/temperednetworks/ModemManager/blob/752027d19f77e65b1d4568de49cf2599c49d4e9e/plugins/quectel/mm-broadband-modem-qmi-quectel.c#L198</a></div> <div class=""> </div> <div class="">I’m hesitant to upstream this because I know that some older qualcomm chipsets return InvalidTransition when setting the operating mode to QMI_DMS_OPERATING_MODE_RESET without first setting it to QMI_DMS_OPERATING_MODE_OFFLINE.</div> </div> </div> <blockquote type="cite" class=""> <div class=""> <div dir="ltr" class=""> <div class=""> </div> <div class=""> qmicli -v -p -d /dev/cdc-wdm3 --dms-get-operating-mode [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] Opening device with flags 'proxy, auto'... [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] loaded driver of cdc-wdm port: qmi_wwan [28 Apr 2020, 10:43:51] -Warning ** [/dev/cdc-wdm3] requested auto mode but no MBIM QMUX support available [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] created endpoint [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 28 <<<<<< data = 01:1B:00:00:00:00:00:01:00:FF:10:00:01:0D:00:2F:64:65:76:2F:63:64:63:2D:77:64:6D:33 [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 27 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 16 <<<<<< message = "Internal Proxy Open" (0xFF00) <<<<<< TLV: <<<<<< type = "Device Path" (0x01) <<<<<< length = 13 <<<<<< value = 2F:64:65:76:2F:63:64:63:2D:77:64:6D:33 <<<<<< translated = /dev/cdc-wdm3 [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 19 <<<<<< data = 01:12:00:80:00:00:01:01:00:FF:07:00:02:04:00:00:00:00:00 [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 18 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 7 <<<<<< message = "Internal Proxy Open" (0xFF00) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS [28 Apr 2020, 10:43:51] [Debug] QMI Device at '/dev/cdc-wdm3' ready [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] Assuming service 'dms' is supported... [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] Allocating new client ID... [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 16 <<<<<< data = 01:0F:00:00:00:00:00:02:22:00:04:00:01:01:00:02 [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 15 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 2 <<<<<< tlv_length = 4 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Service" (0x01) <<<<<< length = 1 <<<<<< value = 02 <<<<<< translated = dms [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:02:22:00:0C:00:02:04:00:00:00:00:00:01:02:00:02:02 [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 2 <<<<<< tlv_length = 12 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Allocation Info" (0x01) <<<<<< length = 2 <<<<<< value = 02:02 <<<<<< translated = [ service = 'dms' cid = '2' ] [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] Registered 'dms' (version unknown) client with ID '2' [28 Apr 2020, 10:43:51] [Debug] Asynchronously getting operating mode... [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 13 <<<<<< data = 01:0C:00:00:02:02:00:01:00:2D:00:00:00 [28 Apr 2020, 10:43:51] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 12 <<<<<< flags = 0x00 <<<<<< service = "dms" <<<<<< client = 2 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 0 <<<<<< message = "Get Operating Mode" (0x002D) [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:02:02:02:01:00:2D:00:0B:00:02:04:00:00:00:00:00:01:01:00:03 [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "dms" <<<<<< client = 2 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 11 <<<<<< message = "Get Operating Mode" (0x002D) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Mode" (0x01) <<<<<< length = 1 <<<<<< value = 03 <<<<<< translated = offline [/dev/cdc-wdm3] Operating mode retrieved: Mode: 'offline' Reason: 'unknown' HW restricted: 'no' [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] Releasing 'dms' client with flags 'release-cid'... [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] Unregistered 'dms' client with ID '2' [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 17 <<<<<< data = 01:10:00:00:00:00:00:03:23:00:05:00:01:02:00:02:02 [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 16 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 3 <<<<<< tlv_length = 5 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 02:02 <<<<<< translated = [ service = 'dms' cid = '2' ] [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:03:23:00:0C:00:02:04:00:00:00:00:00:01:02:00:02:02 [28 Apr 2020, 10:43:55] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 3 <<<<<< tlv_length = 12 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 02:02 <<<<<< translated = [ service = 'dms' cid = '2' ] [28 Apr 2020, 10:43:55] [Debug] Client released [28 Apr 2020, 10:43:55] [Debug] Closed </div> <div class="">RESET:</div> <div class=""> </div> <div class="">qmicli -v -p -d /dev/cdc-wdm3 --dms-set-operating-mode="reset" </div> <div class="">[28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] Opening device with flags 'proxy, auto'... [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] loaded driver of cdc-wdm port: qmi_wwan [28 Apr 2020, 10:44:09] -Warning ** [/dev/cdc-wdm3] requested auto mode but no MBIM QMUX support available [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] created endpoint [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 28 <<<<<< data = 01:1B:00:00:00:00:00:01:00:FF:10:00:01:0D:00:2F:64:65:76:2F:63:64:63:2D:77:64:6D:33 [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 27 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 16 <<<<<< message = "Internal Proxy Open" (0xFF00) <<<<<< TLV: <<<<<< type = "Device Path" (0x01) <<<<<< length = 13 <<<<<< value = 2F:64:65:76:2F:63:64:63:2D:77:64:6D:33 <<<<<< translated = /dev/cdc-wdm3 [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 19 <<<<<< data = 01:12:00:80:00:00:01:01:00:FF:07:00:02:04:00:00:00:00:00 [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 18 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 7 <<<<<< message = "Internal Proxy Open" (0xFF00) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS [28 Apr 2020, 10:44:09] [Debug] QMI Device at '/dev/cdc-wdm3' ready [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] Assuming service 'dms' is supported... [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] Allocating new client ID... [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 16 <<<<<< data = 01:0F:00:00:00:00:00:02:22:00:04:00:01:01:00:02 [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 15 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 2 <<<<<< tlv_length = 4 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Service" (0x01) <<<<<< length = 1 <<<<<< value = 02 <<<<<< translated = dms [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:02:22:00:0C:00:02:04:00:00:00:00:00:01:02:00:02:02 [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 2 <<<<<< tlv_length = 12 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Allocation Info" (0x01) <<<<<< length = 2 <<<<<< value = 02:02 <<<<<< translated = [ service = 'dms' cid = '2' ] [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] Registered 'dms' (version unknown) client with ID '2' [28 Apr 2020, 10:44:09] [Debug] Asynchronously setting operating mode... [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 17 <<<<<< data = 01:10:00:00:02:02:00:01:00:2E:00:04:00:01:01:00:04 [28 Apr 2020, 10:44:09] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 16 <<<<<< flags = 0x00 <<<<<< service = "dms" <<<<<< client = 2 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 4 <<<<<< message = "Set Operating Mode" (0x002E) <<<<<< TLV: <<<<<< type = "Mode" (0x01) <<<<<< length = 1 <<<<<< value = 04 <<<<<< translated = reset [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 20 <<<<<< data = 01:13:00:80:02:02:02:01:00:2E:00:07:00:02:04:00:00:00:00:00 [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 19 <<<<<< flags = 0x80 <<<<<< service = "dms" <<<<<< client = 2 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 7 <<<<<< message = "Set Operating Mode" (0x002E) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS [/dev/cdc-wdm3] Operating mode set successfully [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] Releasing 'dms' client with flags 'release-cid'... [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] Unregistered 'dms' client with ID '2' [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] sent message... <<<<<< RAW: <<<<<< length = 17 <<<<<< data = 01:10:00:00:00:00:00:03:23:00:05:00:01:02:00:02:02 [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 16 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 3 <<<<<< tlv_length = 5 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 02:02 <<<<<< translated = [ service = 'dms' cid = '2' ] [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:03:23:00:0C:00:02:04:00:00:00:00:00:01:02:00:02:02 [28 Apr 2020, 10:44:13] [Debug] [/dev/cdc-wdm3] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 3 <<<<<< tlv_length = 12 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 02:02 <<<<<< translated = [ service = 'dms' cid = '2' ] [28 Apr 2020, 10:44:13] [Debug] Client released [28 Apr 2020, 10:44:13] [Debug] Closed </div> <div class=""> </div> <div class="">Regards,</div> <div class=""> </div> <div class="">--</div> <div class="">Paul</div> </div> _______________________________________________ libqmi-devel mailing list <a href="mailto:libqmi-devel@lists.freedesktop.org" class="">libqmi-devel@lists.freedesktop.org</a> https://lists.freedesktop.org/mailman/listinfo/libqmi-devel </div> </blockquote> </div> </body> </html>