prov/net: Set counter inc callback for saved receives

If a posted receive matches with a saved receive, we may need to
increment the rx counter.  Set the rx counter increment callback
to match that of the posted receive.  This fixes an assert in
xnet_cntr_inc() accessing a NULL cntr_inc function pointer.

Program received signal SIGABRT, Aborted.
0x0000155552d4d37f in raise () from /lib64/libc.so.6
#0  0x0000155552d4d37f in raise () from /lib64/libc.so.6
#1  0x0000155552d37db5 in abort () from /lib64/libc.so.6
#2  0x0000155552d37c89 in __assert_fail_base.cold.0 () from /lib64/libc.so.6
#3  0x0000155552d45a76 in __assert_fail () from /lib64/libc.so.6
#4  0x00001555522967f9 in xnet_cntr_inc (ep=0x6e4c70, xfer_entry=0x6f7a30) at prov/tcp/src/xnet_cq.c:347
#5  0x0000155552296836 in xnet_report_cntr_success (ep=0x6e4c70, cq=0x6ca930, xfer_entry=0x6f7a30) at prov/tcp/src/xnet_cq.c:354
#6  0x000015555229970d in xnet_complete_saved (saved_entry=0x6f7a30) at prov/tcp/src/xnet_progress.c:153
#7  0x0000155552299961 in xnet_recv_saved (saved_entry=0x6f7a30, rx_entry=0x6f7840) at prov/tcp/src/xnet_progress.c:188
#8  0x00001555522946f8 in xnet_srx_tag (srx=0x6dd1c0, recv_entry=0x6f7840) at prov/tcp/src/xnet_srx.c:445
#9  0x0000155552294bb1 in xnet_srx_trecv (ep_fid=0x6dd1c0, buf=0x6990c4, len=4, desc=0x0, src_addr=0, tag=21474836494, ignore=3458764513820540928, context=0x7ffffffeb180) at prov/tcp/src/xnet_srx.c:558
#10 0x000015555228f60e in fi_trecv (ep=0x6dd1c0, buf=0x6990c4, len=4, desc=0x0, src_addr=0, tag=21474836494, ignore=3458764513820540928, context=0x7ffffffeb180) at ./include/rdma/fi_tagged.h:91
#11 0x00001555522900a7 in xnet_rdm_trecv (ep_fid=0x6d9fe0, buf=0x6990c4, len=4, desc=0x0, src_addr=0, tag=21474836494, ignore=3458764513820540928, context=0x7ffffffeb180) at prov/tcp/src/xnet_rdm.c:212

Signed-off-by: Sean Hefty <sean.hefty@intel.com>

prov/tcp/src/xnet_progress.c

@@ -177,6 +177,7 @@ void xnet_recv_saved(struct xnet_xfer_entry *saved_entry,
 	saved_entry->context = rx_entry->context;
 	saved_entry->user_buf = rx_entry->user_buf;
 	saved_entry->cq_flags |= rx_entry->cq_flags;
+	saved_entry->cntr_inc = rx_entry->cntr_inc;
 
 	if (rx_entry->iov_cnt) {
 		memcpy(&saved_entry->iov[0], &rx_entry->iov[0],