diff options
| author | Steve Wise <swise@opengridcomputing.com> | 2008-02-12 16:09:29 -0600 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-02-13 07:47:42 -0800 |
| commit | 8704e9a8790cc9e394198663c1c9150c899fb9a2 (patch) | |
| tree | 68f6ba71227f445d2fb81d5385f22d36fc1ba895 /drivers/infiniband/hw/cxgb3/iwch_cm.c | |
| parent | 7c7a9bccd2ba9f17e4b588461f140578a0a7b073 (diff) | |
| download | blackbird-op-linux-8704e9a8790cc9e394198663c1c9150c899fb9a2.tar.gz blackbird-op-linux-8704e9a8790cc9e394198663c1c9150c899fb9a2.zip | |
RDMA/cxgb3: Fail loopback connections
The cxgb3 HW and driver don't support loopback RDMA connections. So
fail any connection attempt where the destination address is local.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_cm.c')
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch_cm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index e9a08fa3dffe..320f2b6ddee6 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -35,6 +35,7 @@ #include <linux/skbuff.h> #include <linux/timer.h> #include <linux/notifier.h> +#include <linux/inetdevice.h> #include <net/neighbour.h> #include <net/netevent.h> @@ -1784,6 +1785,17 @@ err: return err; } +static int is_loopback_dst(struct iw_cm_id *cm_id) +{ + struct net_device *dev; + + dev = ip_dev_find(&init_net, cm_id->remote_addr.sin_addr.s_addr); + if (!dev) + return 0; + dev_put(dev); + return 1; +} + int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) { int err = 0; @@ -1791,6 +1803,11 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) struct iwch_ep *ep; struct rtable *rt; + if (is_loopback_dst(cm_id)) { + err = -ENOSYS; + goto out; + } + ep = alloc_ep(sizeof(*ep), GFP_KERNEL); if (!ep) { printk(KERN_ERR MOD "%s - cannot alloc ep.\n", __FUNCTION__); |
