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IB/cma: Use inner P_Key to determine netdev 

When discussing the patches to demux ids in rdma_cm instead of ib_cm, it
was decided that it is best to use the P_Key value in the packet headers.
However, the mlx5 and ipath drivers are currently unable to send correct
P_Key values in GMP headers. They always send using a single P_Key that is
set during the GSI QP initialization.

Change the rdma_cm code to look at the P_Key value that is part of the
packet payload as a workaround. Once the drivers are fixed this patch can
be reverted.

Fixes: 4c21b5bcef ("IB/cma: Add net_dev and private data checks to
RDMA CM")
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Haggai Eran 2015-10-20 09:53:01 +03:00 committed by Doug Ledford
parent 0174b381ca
commit ab3964ad2a
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/core/cma.c
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@ -1067,14 +1067,14 @@ static int cma_save_req_info(const struct ib_cm_event *ib_event,
sizeof(req->local_gid)); sizeof(req->local_gid));
req->has_gid = true; req->has_gid = true;
req->service_id = req_param->primary_path->service_id; req->service_id = req_param->primary_path->service_id;
req->pkey = req_param->bth_pkey; req->pkey = be16_to_cpu(req_param->primary_path->pkey);
break; break;
case IB_CM_SIDR_REQ_RECEIVED: case IB_CM_SIDR_REQ_RECEIVED:
req->device = sidr_param->listen_id->device; req->device = sidr_param->listen_id->device;
req->port = sidr_param->port; req->port = sidr_param->port;
req->has_gid = false; req->has_gid = false;
req->service_id = sidr_param->service_id; req->service_id = sidr_param->service_id;
req->pkey = sidr_param->bth_pkey; req->pkey = sidr_param->pkey;
break; break;
default: default:
return -EINVAL; return -EINVAL;