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| author | Yishai Hadas <yishaih@mellanox.com> | 2015-03-03 17:28:49 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-04-15 15:51:50 -0400 |
| commit | ee59fa0d7e9af130bfc1b75524e04c101670bd5e (patch) | |
| tree | f5686baddd5dc88e658064aa40205d650c3af7f0 /drivers/infiniband/hw/mlx4/main.c | |
| parent | f54796012837687532d0a87a0504de22da7c2503 (diff) | |
| download | op-kernel-dev-ee59fa0d7e9af130bfc1b75524e04c101670bd5e.zip op-kernel-dev-ee59fa0d7e9af130bfc1b75524e04c101670bd5e.tar.gz | |
IB/mlx4: Request alias GUID on demand
Request GIDs from the SM on demand, i.e., when a VF actually needs them,
and release them when the GIDs are no longer in use.
In cloud environments, this is useful for GID migrations, in which a
GID is assigned to a VF on the destination HCA, while the VF on the
source HCA is shutdown (but the GID was not administratively released).
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/main.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 976bea7..e92dc9a 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2791,9 +2791,31 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, case MLX4_DEV_EVENT_SLAVE_INIT: /* here, p is the slave id */ do_slave_init(ibdev, p, 1); + if (mlx4_is_master(dev)) { + int i; + + for (i = 1; i <= ibdev->num_ports; i++) { + if (rdma_port_get_link_layer(&ibdev->ib_dev, i) + == IB_LINK_LAYER_INFINIBAND) + mlx4_ib_slave_alias_guid_event(ibdev, + p, i, + 1); + } + } return; case MLX4_DEV_EVENT_SLAVE_SHUTDOWN: + if (mlx4_is_master(dev)) { + int i; + + for (i = 1; i <= ibdev->num_ports; i++) { + if (rdma_port_get_link_layer(&ibdev->ib_dev, i) + == IB_LINK_LAYER_INFINIBAND) + mlx4_ib_slave_alias_guid_event(ibdev, + p, i, + 0); + } + } /* here, p is the slave id */ do_slave_init(ibdev, p, 0); return; |
