rdma-core/ibacm-Incorrect-usage-of-BE-byte-order-of-MLID-attach-detach_mcast.patch
Nicolas Morey-Chaisemartin 6c79bc4c77 Accepting request 540247 from home:NMoreyChaisemartin:branches:science:HPC
- Backport upstream patches
  * bnxt_re-lib-fix-the-memory-barrier-call-during-poll-cq.patch
    Fix memory ordering issue
  * bnxt_re-lib-increment-psn-in-case-of-0-length-packets.patch
    Fix PSN getting out of sync when sending 0 length packet
  * verbs-Do-not-block-QP-attr_masks-used-by-older-kernels.patch
    Fix bits detection to allow RDMA CM to work on older kernsl
- Refresh older patches to include commit logs:
  * ibacm-Incorrect-list-used-for-subnet-list-causes-a-segfault.patch
  * ibacm-Incorrect-usage-of-BE-byte-order-of-MLID-attach-detach_mcast.patch
  * libibumad-umad.c-In-get_port-ignore-sysfs-rate-file-errors.patch
  * libqedr-fix-inline-data-copy.patch

OBS-URL: https://build.opensuse.org/request/show/540247
OBS-URL: https://build.opensuse.org/package/show/science:HPC/rdma-core?expand=0&rev=59
2017-11-09 15:20:02 +00:00

51 lines
2.0 KiB
Diff

commit ed6a98208e04be9401eb727b57e78a29eecbe660
Author: Michael J. Ruhl <michael.j.ruhl@intel.com>
Date: Mon Oct 16 10:24:21 2017 -0400
ibacm: Incorrect usage of BE byte order of MLID attach/detach_mcast()
The MLID value passed to ibv_attach/detach_mcast() must be in host
byte order.
acmp.c incorrectly uses the big endian format when doing a multicast
attach/detach (join). Multicast packets are used to do name resolution
by the libibacmp library.
There are two possible results because of this issue.
If a kernel has commit 8561eae60ff9, the attach will fail with an
EINVAL. ibacm will log this as a failure during the multicast join.
If a kernel does not have commit 8561eae60ff9, the attach will
complete successfully. Packets sent to this address will be dropped
because the packet dlid value and the multicast address information
given by the attach will not match.
Update MLID usage to use the correct byte order.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
diff --git ibacm/prov/acmp/src/acmp.c ibacm/prov/acmp/src/acmp.c
index aa784166..78d9a295 100644
--- ibacm/prov/acmp/src/acmp.c
+++ ibacm/prov/acmp/src/acmp.c
@@ -732,7 +732,7 @@ static void acmp_process_join_resp(struct acm_sa_mad *sa_mad)
acm_log(0, "ERROR - unable to create ah\n");
goto out;
}
- ret = ibv_attach_mcast(ep->qp, &mc_rec->mgid, mc_rec->mlid);
+ ret = ibv_attach_mcast(ep->qp, &dest->mgid, dest->av.dlid);
if (ret) {
acm_log(0, "ERROR - unable to attach QP to multicast group\n");
ibv_destroy_ah(dest->ah);
@@ -1429,7 +1429,7 @@ static void acmp_ep_join(struct acmp_ep *ep)
if (ep->mc_dest[0].state == ACMP_READY && ep->mc_dest[0].ah) {
ibv_detach_mcast(ep->qp, &ep->mc_dest[0].mgid,
- be16toh(ep->mc_dest[0].av.dlid));
+ ep->mc_dest[0].av.dlid);
ibv_destroy_ah(ep->mc_dest[0].ah);
ep->mc_dest[0].ah = NULL;
}