Commit cea05ead authored Jul 28, 2016 by Mustafa Ismail Committed by Doug Ledford Aug 02, 2016

IB/core: Add flow control to the portmapper netlink calls



During connection establishment with a large number of
connections, it is possible that the connection requests
might fail. Adding flow control prevents this failure.
Change ibnl_unicast to use blocking to enable flow control.

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

parent 3b8fb4b8

drivers/infiniband/core/netlink.c

+5 −1

Original line number	Original line	Diff line number	Diff line
	@@ -229,7 +229,10 @@ static void ibnl_rcv(struct sk_buff *skb)
	int ibnl_unicast(struct sk_buff skb, struct nlmsghdr nlh,		int ibnl_unicast(struct sk_buff skb, struct nlmsghdr nlh,
	__u32 pid)		__u32 pid)
	{		{
	return nlmsg_unicast(nls, skb, pid);		int err;

			err = netlink_unicast(nls, skb, pid, 0);
			return (err < 0) ? err : 0;
	}		}
	EXPORT_SYMBOL(ibnl_unicast);		EXPORT_SYMBOL(ibnl_unicast);

	@@ -252,6 +255,7 @@ int __init ibnl_init(void)
	return -ENOMEM;		return -ENOMEM;
	}		}

			nls->sk_sndtimeo = 10 * HZ;
	return 0;		return 0;
	}		}