[etherlab-dev] Missing mailbox handler

[Knud Baastrup]

Hi

I often get below SDO: Input/output error when using the EtherCAT command line tool while an EoE handler is running as well.

~ # ethercat upload -p1 0xf101 1 -t uint8
Failed to upload SDO: Input/output error


Below is some debug info from the syslog where it seems like the SDO upload requested via the EtherCAT command line tool has been received by the EoE handler that have simply dropped the datagram due to wrong mailbox protocol.

2000-01-06T22:14:11.140760+00:00 PCM51-sn214 kernel: [171153.189812] EtherCAT DEBUG 0: ecrt_master_sdo_upload(master = 0xc786e000, slave_position = 1, index = 0xF101, subindex = 0x01, target = 0xc7198720, target_size = 1, result_size = 0xc7909dc8, abort_code = 0xc7909dcc)
2000-01-06T22:14:11.140845+00:00 PCM51-sn214 kernel: [171153.189865] EtherCAT DEBUG 0-1: Scheduling SDO upload request.
2000-01-06T22:14:11.140877+00:00 PCM51-sn214 kernel: [171153.191475] EtherCAT DEBUG 0-1: Processing SDO request...
2000-01-06T22:14:11.140900+00:00 PCM51-sn214 kernel: [171153.191507] EtherCAT DEBUG 0-1: Uploading SDO 0xF101:01.
2000-01-06T22:14:11.140922+00:00 PCM51-sn214 kernel: [171153.191529] EtherCAT DEBUG 0-1: Upload request:
2000-01-06T22:14:11.140945+00:00 PCM51-sn214 kernel: [171153.191544] EtherCAT DEBUG: 00 20 40 01 F1 01 00 00 00 00
2000-01-06T22:14:11.152670+00:00 PCM51-sn214 kernel: [171153.196476] EtherCAT WARNING 0-1: Other mailbox protocol response for eoe0s1.
2000-01-06T22:14:11.164709+00:00 PCM51-sn214 kernel: [171153.204544] EtherCAT ERROR 0-1: Reception of CoE upload response failed: No response.
2000-01-06T22:14:11.164791+00:00 PCM51-sn214 kernel: [171153.212760] EtherCAT ERROR 0-1: Failed to process SDO request.


I can see that somebody have added an FIXME comment in the code (ethernet.c),  but I wonder if anybody have already done some thoughts of a possible implementation or if anybody is already working on a solution ?

if (mbox_prot != 0x02) { // EoE FIXME mailbox handler necessary
   eoe->stats.rx_errors++;
#if EOE_DEBUG_LEVEL >= 1
   EC_SLAVE_WARN(eoe->slave, "Other mailbox protocol response for %s.\n", eoe->dev->name);
#endif


BR,  Knud Baastrup
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