Author: hselasky
Date: Tue Jul 17 09:33:20 2018
New Revision: 336386
URL: https://svnweb.freebsd.org/changeset/base/336386
Log:
Honor port_num while resolving GID for IB link layer in ibcore.
ah_attr contains the port number to which cm_id is bound. However, while
searching for GID table for matching GID entry, the port number is
ignored.
This could cause the wrong GID to be used when the ah_attr is converted to
an AH.
Linux commit:
563c4ba3bd2b8b0b21c65669ec2226b1cfa1138b
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/ofed/drivers/infiniband/core/ib_multicast.c
Modified: head/sys/ofed/drivers/infiniband/core/ib_multicast.c
==============================================================================
--- head/sys/ofed/drivers/infiniband/core/ib_multicast.c Tue Jul 17
09:32:09 2018 (r336385)
+++ head/sys/ofed/drivers/infiniband/core/ib_multicast.c Tue Jul 17
09:33:20 2018 (r336386)
@@ -727,21 +727,19 @@ int ib_init_ah_from_mcmember(struct ib_device *device,
{
int ret;
u16 gid_index;
- u8 p;
- if (rdma_protocol_roce(device, port_num)) {
- ret = ib_find_cached_gid_by_port(device, &rec->port_gid,
- gid_type, port_num,
- ndev,
- &gid_index);
- } else if (rdma_protocol_ib(device, port_num)) {
- ret = ib_find_cached_gid(device, &rec->port_gid,
- IB_GID_TYPE_IB, NULL, &p,
- &gid_index);
- } else {
- ret = -EINVAL;
- }
+ /* GID table is not based on the netdevice for IB link layer,
+ * so ignore ndev during search.
+ */
+ if (rdma_protocol_ib(device, port_num))
+ ndev = NULL;
+ else if (!rdma_protocol_roce(device, port_num))
+ return -EINVAL;
+ ret = ib_find_cached_gid_by_port(device, &rec->port_gid,
+ gid_type, port_num,
+ ndev,
+ &gid_index);
if (ret)
return ret;
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