diff options
| author | Jack Morgenstein <jackm@dev.mellanox.co.il> | 2015-07-30 17:34:23 +0300 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-10-07 10:22:45 -0400 |
| commit | 64665b05f6cd361f324eddd849cae977a5f26d2e (patch) | |
| tree | cddc40873a004b3191ff3a06ed3a9b291a169559 /drivers/infiniband/hw | |
| parent | edf5a729fde3db5342937462999f6414de2a662e (diff) | |
| download | linux-rt-64665b05f6cd361f324eddd849cae977a5f26d2e.tar.gz | |
IB/mlx4: Forbid using sysfs to change RoCE pkeys
[ Upstream commit 2b135db3e81301d0452e6aa107349abe67b097d6 ]
The pkey mapping for RoCE must remain the default mapping:
VFs:
virtual index 0 = mapped to real index 0 (0xFFFF)
All others indices: mapped to a real pkey index containing an
invalid pkey.
PF:
virtual index i = real index i.
Don't allow users to change these mappings using files found in
sysfs.
Fixes: c1e7e466120b ('IB/mlx4: Add iov directory in sysfs under the ib device')
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>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/sysfs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/sysfs.c b/drivers/infiniband/hw/mlx4/sysfs.c index cb4c66e723b5..89b43da1978d 100644 --- a/drivers/infiniband/hw/mlx4/sysfs.c +++ b/drivers/infiniband/hw/mlx4/sysfs.c @@ -660,6 +660,8 @@ static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) struct mlx4_port *p; int i; int ret; + int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port_num) == + IB_LINK_LAYER_ETHERNET; p = kzalloc(sizeof *p, GFP_KERNEL); if (!p) @@ -677,7 +679,8 @@ static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) p->pkey_group.name = "pkey_idx"; p->pkey_group.attrs = - alloc_group_attrs(show_port_pkey, store_port_pkey, + alloc_group_attrs(show_port_pkey, + is_eth ? NULL : store_port_pkey, dev->dev->caps.pkey_table_len[port_num]); if (!p->pkey_group.attrs) { ret = -ENOMEM; |