diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx4')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mad.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 1672907..18d309e 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -702,10 +702,18 @@ static int mlx4_ib_demux_mad(struct ib_device *ibdev, u8 port, /* If a grh is present, we demux according to it */ if (wc->wc_flags & IB_WC_GRH) { - slave = mlx4_ib_find_real_gid(ibdev, port, grh->dgid.global.interface_id); - if (slave < 0) { - mlx4_ib_warn(ibdev, "failed matching grh\n"); - return -ENOENT; + if (grh->dgid.global.interface_id == + cpu_to_be64(IB_SA_WELL_KNOWN_GUID) && + grh->dgid.global.subnet_prefix == cpu_to_be64( + atomic64_read(&dev->sriov.demux[port - 1].subnet_prefix))) { + slave = 0; + } else { + slave = mlx4_ib_find_real_gid(ibdev, port, + grh->dgid.global.interface_id); + if (slave < 0) { + mlx4_ib_warn(ibdev, "failed matching grh\n"); + return -ENOENT; + } } } /* Class-specific handling */ |