Ceph » Messengers

In src/msg/async/rdma/Infiniband.cc

function send_msg encode struct IBSYNMsg to a string, and recv_msg parse the string.

In send_msg, im.lid (unsigned short int) is formatted into a string with format string %04x,
so, recv_msg should read im.lid from the string with format string %hx instead of %hu (unsigned short).

int Infiniband::recv_msg(CephContext *cct, int sd, IBSYNMsg& im) {
...
sscanf(msg, "*%hu:%x:%x:%x:%s*", &(im.lid), &(im.qpn), &(im.psn), &(im.peer_qpn),gid);
...
}

int Infiniband::send_msg(CephContext *cct, int sd, IBSYNMsg& im) {
...
sprintf(msg, "*%04x:%08x:%08x:%08x:%s*", im.lid, im.qpn, im.psn, im.peer_qpn, gid);
...
}