diff options
| -rw-r--r-- | drivers/infiniband/core/cm.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index f6b159d79977..1cafa8350c52 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1560,6 +1560,37 @@ static u16 cm_get_bth_pkey(struct cm_work *work) return pkey; } +/** + * Convert OPA SGID to IB SGID + * ULPs (such as IPoIB) do not understand OPA GIDs and will + * reject them as the local_gid will not match the sgid. Therefore, + * change the pathrec's SGID to an IB SGID. + * + * @work: Work completion + * @path: Path record + */ +static void cm_opa_to_ib_sgid(struct cm_work *work, + struct sa_path_rec *path) +{ + struct ib_device *dev = work->port->cm_dev->ib_device; + struct ib_gid_attr gid_attr; + u8 port_num = work->port->port_num; + + if (rdma_cap_opa_ah(dev, port_num) && + (ib_is_opa_gid(&path->sgid))) { + union ib_gid sgid; + + if (ib_get_cached_gid(dev, port_num, 0, + &sgid, &gid_attr)) { + dev_warn(&dev->dev, + "Error updating sgid in CM request\n"); + return; + } + + path->sgid = sgid; + } +} + static void cm_format_req_event(struct cm_work *work, struct cm_id_private *cm_id_priv, struct ib_cm_id *listen_id) @@ -1573,10 +1604,13 @@ static void cm_format_req_event(struct cm_work *work, param->bth_pkey = cm_get_bth_pkey(work); param->port = cm_id_priv->av.port->port_num; param->primary_path = &work->path[0]; - if (cm_req_has_alt_path(req_msg)) + cm_opa_to_ib_sgid(work, param->primary_path); + if (cm_req_has_alt_path(req_msg)) { param->alternate_path = &work->path[1]; - else + cm_opa_to_ib_sgid(work, param->alternate_path); + } else { param->alternate_path = NULL; + } param->remote_ca_guid = req_msg->local_ca_guid; param->remote_qkey = be32_to_cpu(req_msg->local_qkey); param->remote_qpn = be32_to_cpu(cm_req_get_local_qpn(req_msg)); |