diff options
| author | Daniel Jurgens <danielj@mellanox.com> | 2017-05-19 15:48:51 +0300 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2017-05-23 17:24:17 +0300 |
| commit | 883c71feaf2e810e0331cf780c738cbb09e93b58 (patch) | |
| tree | 35c4bf3f56bce25fd38c2ccab50eaa08ff9607ad /drivers/infiniband | |
| parent | 270e8573145a26de924e2dc644596332d400445b (diff) | |
| download | linux-883c71feaf2e810e0331cf780c738cbb09e93b58.tar.xz | |
IB/core: IB cache enhancements to support Infiniband security
Cache the subnet prefix and add a function to access it. Enforcing
security requires frequent queries of the subnet prefix and the pkeys in
the pkey table.
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Acked-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/cache.c | 22 | ||||
| -rw-r--r-- | drivers/infiniband/core/core_priv.h | 3 |
2 files changed, 25 insertions, 0 deletions
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index b1371eb9f46c..b9c0066b704e 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -911,6 +911,26 @@ int ib_get_cached_pkey(struct ib_device *device, } EXPORT_SYMBOL(ib_get_cached_pkey); +int ib_get_cached_subnet_prefix(struct ib_device *device, + u8 port_num, + u64 *sn_pfx) +{ + unsigned long flags; + int p; + + if (port_num < rdma_start_port(device) || + port_num > rdma_end_port(device)) + return -EINVAL; + + p = port_num - rdma_start_port(device); + read_lock_irqsave(&device->cache.lock, flags); + *sn_pfx = device->cache.ports[p].subnet_prefix; + read_unlock_irqrestore(&device->cache.lock, flags); + + return 0; +} +EXPORT_SYMBOL(ib_get_cached_subnet_prefix); + int ib_find_cached_pkey(struct ib_device *device, u8 port_num, u16 pkey, @@ -1108,6 +1128,8 @@ static void ib_cache_update(struct ib_device *device, device->cache.ports[port - rdma_start_port(device)].port_state = tprops->state; + device->cache.ports[port - rdma_start_port(device)].subnet_prefix = + tprops->subnet_prefix; write_unlock_irq(&device->cache.lock); kfree(gid_cache); diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index cb7d372e4bdf..249e3ed90365 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -176,4 +176,7 @@ int ib_nl_handle_set_timeout(struct sk_buff *skb, int ib_nl_handle_ip_res_resp(struct sk_buff *skb, struct netlink_callback *cb); +int ib_get_cached_subnet_prefix(struct ib_device *device, + u8 port_num, + u64 *sn_pfx); #endif /* _CORE_PRIV_H */ |