Sorry for the last incomplete mail, I accidentaly pressed the enter when
in the wrong focus...
here we go again:
Hello,
First of all thanks for the reply! I was really getting desperate about
this issue.
I have looked in the libibverbs examples and I cannot see differences
between my code and the one in the examples (at least functionally, I
clearly have another structure in my programm).
About the snippets: I didn't want to copy/paste all the code into my
mail, that's why I provided a link to where the code can be found:
http://www.ifh.de/~boyanov/ibpipo/ <http://www.ifh.de/%7Eboyanov/ibpipo/>
I still cannot understand what I am doing wrong, and why the errors ocur
only on one of the Queue Pairs. Is it possible that I try to interact
with some of the "reserved" QPs like the QP0 and QP1?
Another thing: I am also getting segfaults when trying to modify the LID
of the QP contexts. i first get the LID from the device and then when
trying to set it in my custom QP context structure I get a segfault:
struct ibv_port_attr tmp_port_attr;
ret = ibv_query_port(ping_ib_thread.ibctx, barg.port, &tmp_port_attr);
if ( ret != 0){
printf("error querying IB port %d for context %s\n", port,
ping_ib_thread.ibctx->device->dev_path);
perror("ibv_query_port");
}
ping_ib_thread.ibport_attr->lid = tmp_port_attr.lid;
pong_ib_thread.ibport_attr->lid = tmp_port_attr.lid;
Here, barg.port = 1 and port 1 is in the PORT_ACTIVE state. I know I am
missing something small but I am so confused and frustrated from this
code I cannot see anything anymore in it...
Please, if you have some clues to what can be wrong, at least where I
can dig for more info and possible problems, let me know.
Best Regards,
Konstantin
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